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SYNATIVE AL G 16

Synative AL G 16—widely traded across global lubricant, metalworking-fluid, specialty solvent, agrochemical, surfactant, and personal-care markets under its chemical and industrial synonyms 2-Hexyldecanol, 2-Hexyldecan-1-ol, 2-Hexyl-1-decanol, C16 Guerbet Alcohol, Branched C16 Primary Fatty Alcohol, Isohexadecyl Guerbet Alcohol, INCI HEXYLDECANOL, and Dallanmış C16 Guerbet Alkolü (2-Hekzildekanol)—is a high-purity, saturated, beta-branched sixteen-carbon primary alcohol engineered for extreme low-temperature fluidity, oxidative stability, boundary lubricity, and amphiphilic coupling. Across global industrial manufacturing, lubricant and metalworking-fluid formulators rely on Synative AL G 16 as a polar lubricity booster, anti-mist base fluid, and nonionic/anionic emulsifier coupler in neat cutting oils, drilling and deep-hole boring oils, stamping and drawing oils, aluminum rolling oils, Minimum Quantity Lubrication (MQL) spray fluids, and water-miscible semi-synthetic and soluble-oil coolants, while specialty chemical producers deploy it as a biodegradable agrochemical solvent/adjuvant and as the premier C16 Guerbet building block for low-pour-point synthetic esters and low-foam Guerbet alkoxylates.

At the molecular level, Synative AL G 16 is synthesized via the high-temperature alkaline catalytic Guerbet condensation (self-dimerization) of two molecules of linear 1-octanol (capryl alcohol, C8H17OH) followed by selective catalytic hydrogenation, yielding a defined, regioselectively beta-branched primary alcohol carrying the exact structure CH3-(CH2)7-CH[(CH2)5-CH3]-CH2-OH (molecular formula C16H34O, molecular weight 242.44 g/mol). Unlike its linear sixteen-carbon structural isomer Cetyl Alcohol (1-hexadecanol, C16H34O, which crystallizes into a hard waxy solid melting at 49 °C), the symmetrical C6 hexyl side-branch at the C-2 position of Synative AL G 16 sterically frustrates hydrocarbon chain packing while preserving a 100% saturated, double-bond-free carbon skeleton—depressing the cloud point below -30 °C and the pour point down to -60 °C while maintaining an ultra-low iodine value (<= 1.0 g I2/100 g) that resists thermal gumming and autoxidation.
 

Lubricant chemists, metalworking-fluid engineers, and surfactant formulators systematically prefer Synative AL G 16 over linear C12–C14 fatty alcohols (which solidify at 24–38 °C), unsaturated oleyl alcohol (C18:1, which oxidizes rapidly into sticky varnish and rancid odors on hot machine tools), and oxo-process multi-branched iso-alcohols because Synative AL G 16 combines water-white clarity, neutral odor, zero unsaturation, low volatility (open-cup flash point >= 160 °C), and a -60 °C pour point with a clean ecological profile free of human hazard and aquatic toxicity labels. Furthermore, in water-miscible metalworking fluids, the twin-tailed wedge geometry of 2-Hexyldecanol inserts into surfactant palisade layers at the oil-water interface to solubilize sulfonates, tall oil soaps, and nonionic ethoxylates while suppressing persistent foam and stabilizing emulsions against hard-water calcium shock.

Supplied commercially by Ataman Kimya as a crystal-clear, colorless to slightly yellowish oily liquid (density 0.835 to 0.840 g/cm3 at 20 °C, dynamic viscosity 40 to 50 mPa·s at 20 °C, hydroxyl value 225 to 235 mg KOH/g, and acid value <= 0.5 mg KOH/g), Synative AL G 16 is miscible in all proportions with mineral base oils (Group I, II, III), polyalphaolefins (PAOs), vegetable triglycerides, and synthetic esters. Matching the target viscosity, boundary lubricity, coupling ratio, or esterification stoichiometry with Synative AL G 16 enables formulators to achieve clean, non-staining metalworking performance, sub-zero hydraulic/gear fluid flowability, and high-efficiency agrochemical or cosmetic delivery.

CAS Number: 2425-77-6 (1-Decanol, 2-hexyl-; 2-Hexyldecan-1-ol; C16 Guerbet Alcohol)
EC Number: 219-370-1 (EINECS 219-370-1; EU REACH Registered substance: 2-hexyldecan-1-ol)
Molecular Formula: C16H34O (Condensed Structural Formula: CH3(CH2)7CH[(CH2)5CH3]CH2OH; Beta-branched C16 saturated primary mono-alcohol)
Molecular Weight: 242.44 g/mol (Exact Monoisotopic Mass: 242.2610 g/mol)
INCI Name: HEXYLDECANOL (Official CosIng cosmetic ingredient designation for 2-hexyldecan-1-ol; Cosmetic counterpart trade name: Eutanol G 16)
E Number: Not assigned (Industrial lubricant base component, metalworking fluid co-emulsifier/solubilizer, agrochemical solvent, and chemical intermediate; cleared for indirect food-contact lubricants, adhesives, paperboard coatings, and metal-rolling oils under US FDA 21 CFR 175.105, 176.170, 176.210, and 178.3910)
Melting Point: Cloud Point <= -30.0 °C (-22.0 °F, Cognis Q-P 1315.0); Pour Point -60.0 °C (-76.0 °F, DIN ISO 3016; Glass Transition / Solidification onset < -50.0 to -60.0 °C; remains a free-flowing crystal-clear liquid down to extreme arctic temperatures)
Boiling Point: 305.0 to 315.0 °C (581.0 to 599.0 °F) at 101.3 kPa atmospheric pressure; 168.0 to 175.0 °C at 2.0 kPa (15 mmHg) reduced pressure (Cleveland Open-Cup Flash Point by DIN ISO 2592: >= 160.0 °C / 320.0 °F)
Viscosity: 40.0 to 50.0 mPa·s (cP) dynamic viscosity at 20 °C (DGF C-IV 7, typically 43 to 47 mPa·s at 20 °C); Kinematic Viscosity (ASTM D445 / DIN 51562): approximately 50 to 58 mm2/s (cSt) at 20 °C, 22.0 to 26.0 mm2/s at 40 °C, and 4.5 to 5.5 mm2/s at 100 °C
Density: 0.8350 to 0.8400 g/cm3 (835.0 to 840.0 kg/m3, typically 0.837 to 0.838 g/cm3) at 20 °C (DIN 51757 V4 / ISO 12185)

Most Frequently Encountered Synonyms:
Synative AL G 16
SYNATIVE AL G 16
Synative AL-G 16
Synative ALG 16
BASF Synative AL G 16
Cognis Synative AL G 16
2-Hexyldecanol
2-Hexyldecanol-1
2-Hexyldecan-1-ol
2-Hexyl-1-decanol
1-Decanol, 2-hexyl-
Hexyldecanol
n-Hexyldecanol
C16 Guerbet Alcohol
Guerbet Alcohol C16
Branched C16 Fatty Alcohol
UNII-516388A16B
CAS 2425-77-6
EC 219-370-1


WHAT IS SYNATIVE AL G 16?


Known across international metalworking fluid, synthetic lubricant, agrochemical, and surfactant commerce as Synative AL G 16 (and in Turkish industrial trade as Synative AL G 16, 2-Hekzildekanol, or C16 Guerbet Alkolü), Synative AL G 16 is a defined, 100% saturated, beta-branched sixteen-carbon primary fatty alcohol chemically identified as 2-Hexyldecan-1-ol (CAS No. 2425-77-6, EC / EINECS No. 219-370-1). Developed within the flagship Synative lubricant and metalworking-fluid component portfolio of Cognis / BASF, where 'Synative' designates high-performance synthetic lubricant base stocks and additives, 'AL' stands for Alcohol, 'G' stands for Guerbet branched structure, and '16' denotes the total carbon number (C16), Synative AL G 16 is supplied by Ataman Kimya as a crystal-clear, colorless to pale-yellowish low-viscosity oily liquid.
Why the Guerbet Beta-Branching Architecture of Synative AL G 16 Is Unique in Organic Chemistry:
Discovered by Marcel Guerbet in 1899, the Guerbet reaction converts a linear primary alcohol of carbon length Cn into a perfectly defined beta-branched primary alcohol of carbon length C2n with a single alkyl branch located strictly at the C-2 position (CH3-(CH2)n-1-CH[(CH2)n-3-CH3]-CH2-OH). In the case of Synative AL G 16, dimerizing linear C8 1-octanol yields 2-Hexyldecanol, which features an eight-carbon main decanol chain with a six-carbon n-hexyl branch at the C-2 carbon adjacent to the primary hydroxymethyl (-CH2OH) group.
Formulators and tribologists must strictly distinguish Synative AL G 16 (CAS 2425-77-6) from three related C16–C18 alcohols:

 Distinction from Linear Cetyl Alcohol (1-Hexadecanol, C16H34O, CAS 36653-82-4): Although linear Cetyl Alcohol and branched Synative AL G 16 share the exact same molecular formula (C16H34O) and identical molecular weight (242.44 g/mol, theoretical Hydroxyl Value = 231.4 mg KOH/g), linear Cetyl Alcohol is a hard crystalline wax solid at room temperature (melting point +49 °C) that precipitates out of cold mineral oils and cannot be pumped without heated lines. By contrast, the C-2 hexyl branch of Synative AL G 16 lowers the cloud point below -30 °C and the pour point to -60 °C—yielding a permanent liquid that flows effortlessly at -30 °C!

 Distinction from Unsaturated Oleyl Alcohol (cis-9-Octadecen-1-ol, C18H36O, CAS 143-28-2, e.g., HD-Ocenol / Synative AL 90/95 V): Unsaturated oleyl alcohol remains liquid down to +5 to +13 °C because of its internal cis-double bond (Iodine Value ~85 to 95 g I2/100 g). However, under the intense thermal and oxidative stress of high-speed metal cutting, aluminum hot/cold rolling, or air-sparged coolant sumps, the carbon-carbon double bond of oleyl alcohol undergoes free-radical autoxidation and polymerization—forming sticky gum/varnish deposits on CNC machine ways, staining annealed aluminum coils brown, and developing rancid odors. Because Synative AL G 16 is 100% saturated (Iodine Value <= 0.5 to 1.0 g I2/100 g), it delivers all the liquid lubricity and coupling power of oleyl alcohol with ZERO oxidative gumming, ZERO varnish formation, and a Pour Point 65 °C lower (-60 °C vs. +8 °C)!

 Distinction from Oxo-Process Multi-Branched Iso-Alcohols (e.g., Isotridecanol C13 or Exxal 16): Petrochemical Oxo alcohols (produced by hydroformylation of propylene/butene oligomers) consist of a complex statistical mixture of dozens of random methyl- and ethyl-branched isomers with noticeable petrochemical odor and variable secondary branching. Synative AL G 16 is a structurally uniform (> 95%–98% single isomer 2-hexyldecan-1-ol) oleochemical Guerbet alcohol with virtually no odor, superior biodegradability, and clean dermatological compatibility (identical in chemical structure to cosmetic emollient INCI HEXYLDECANOL).


CHEMICAL STRUCTURE, MOLECULAR ARCHITECTURE AND TRIBOLOGICAL / INTERFACIAL CHEMISTRY


Understanding why Synative AL G 16 performs simultaneously as a boundary lubricity agent, a low-temperature fluidity modifier, a water-miscible MWF coupler, and an antifoaming co-surfactant requires examining its three molecular domains:

 The Polar Primary Hydroxymethyl Anchor (-CH2-OH):
At the C-1 terminus of Synative AL G 16 sits a sterically accessible primary hydroxyl group (-CH2-OH, Hydroxyl Value 225 to 235 mg KOH/g). In metalworking tribology (cutting, drilling, tapping, stamping, and rolling of aluminum, copper, brass, titanium, and steel alloys), this polar -OH headgroup chemisorbs and hydrogen-bonds rapidly onto nascent oxide-coated metal surfaces exposed at the tool-workpiece cutting zone. Unlike sulfurized or chlorinated extreme-pressure (EP) additives that chemically corrode yellow metals (copper, brass, bronze) or stain aluminum during annealing, the neutral alcohol group of Synative AL G 16 forms a tenacious, non-corrosive, self-healing boundary lubrication monolayer that slashes friction coefficient and prevents built-up edge (BUE) on cutting tools.

 The Twin-Tailed Beta-Branched C6/C8 Aliphatic Wedge (CH3(CH2)7-CH[(CH2)5CH3]-):
Attached immediately to the C-2 carbon are two linear saturated hydrocarbon chains of nearly equal length: an n-octyl segment (C8, counting C-1 to C-10) and an n-hexyl branch (C6). This 'twin-tailed V-shaped wedge' geometry imparts three decisive physicochemical properties:
- Complete Steric Suppression of Crystallization (Cloud Point <= -30 °C, Pour Point -60 °C): The bulky V-shaped fork prevents adjacent hydrocarbon chains from aligning into orthorhombic wax lattices, keeping Synative AL G 16 and its derivative esters liquid down to -50 to -60 °C and disrupting paraffin wax crystal networks when blended into Group I/II mineral oils.
- Interfacial Wedge Coupling & Emulsion Stabilization in Water-Miscible MWFs: In semi-synthetic and soluble-oil metalworking fluid concentrates, linear co-surfactants often pack too tightly with anionic sulfonates and tall oil soaps, forming stiff, unpourable liquid-crystalline gel phases upon water dilution. When Synative AL G 16 (at 1.5% to 6.0% w/w in the concentrate) inserts into the oil-water surfactant palisade layer, its bulky twin-tailed C6/C8 hydrophobic wedge increases the critical packing parameter (CPP) and fluidizes the interfacial film—coupling incompatible polar additives into clear concentrates and yielding ultra-fine, blue-translucent microemulsions upon dilution in hard water (200 to 800 ppm CaCO3).
- Intrinsic Foam-Breaking & Air-Release Action: Because the V-shaped branched tail of Synative AL G 16 disrupts the lateral cohesive elasticity of soap lamellae at the air-water interface, it acts as a built-in defoaming and air-release co-surfactant in high-pressure CNC coolant systems (50 to 100 bar through-spindle coolant delivery).

 Reactive Primary Alcohol Stoichiometry for Derivative Synthesis:
Because the hydroxyl group on C-1 is a primary alcohol (-CH2OH) rather than a sterically hindered secondary or tertiary alcohol, Synative AL G 16 undergoes quantitative esterification with mono-, di-, and polycarboxylic acids (adipic, sebacic, azelaic, dimer, trimellitic, or oleic acids), quantitative ethoxylation/alkoxylation (to form low-foam Synative XA-series Guerbet ethoxylates), and sulfation/phosphation (to form branched alkyl ether sulfates and Guerbet phosphate esters).


INDUSTRIAL PRODUCTION AND MANUFACTURING PROCESSES


Commercial Synative AL G 16 (2-Hexyldecan-1-ol, CAS 2425-77-6) is manufactured via the classic three-stage catalytic Guerbet reaction sequence starting from renewable or synthetic 1-Octanol (Capryl Alcohol, C8H17OH):

Step 1: Catalytic Dehydrogenation of 1-Octanol to Octanal: High-purity linear 1-octanol (derived from palm kernel / coconut fatty acid methyl ester hydrogenation or ethylene oligomerization) is heated to 180 to 230 °C in the presence of a basic condensation catalyst (such as potassium hydroxide KOH, sodium alkoxide, or potassium carbonate, 0.5% to 2.0% w/w) and a transition-metal dehydrogenation co-catalyst (such as supported copper, nickel, or zinc oxide). A portion of the 1-octanol is reversibly dehydrogenated in situ into the corresponding C8 aldehyde (octanal, CH3(CH2)6CHO) with liberation of hydrogen.

Step 2: Base-Catalyzed Aldol Condensation and Dehydration (Guerbet Dimerization): Immediately upon formation, two molecules of octanal undergo base-catalyzed nucleophilic aldol condensation—where the alpha-carbon (C-2) of one octanal molecule attacks the carbonyl carbon (C-1) of a second octanal molecule—followed by rapid thermal dehydration (-H2O, which is continuously distilled off via an overhead azeotropic separator to drive equilibrium past 90% conversion) to form the alpha,beta-unsaturated C16 branched aldehyde intermediate (2-hexyl-2-decenal).

Step 3: In-Situ Hydrogen Transfer and High-Pressure Polishing Hydrogenation: Through concerted Cannizzaro/Meerwein-Ponndorf-Verley hydrogen transfer in the reactor followed by fixed-bed catalytic polishing hydrogenation with pure H2 gas at 150 to 200 °C and 30 to 100 bar over a Ni or Cu-Cr/Cu-Zn catalyst, both the conjugated C=C double bond and the aldehyde C=O carbonyl group of 2-hexyl-2-decenal are completely saturated—yielding crude 2-Hexyldecan-1-ol (Iodine Value <= 0.5 g I2/100 g, Carbonyl Value < 100 ppm).

Step 4: Neutralization, Washing, and High-Vacuum Fractional Distillation: The alkaline catalyst is neutralized and washed out, unreacted C8 1-octanol monomer (< 5%–8%) is stripped and recycled in a fore-run vacuum column, and the heart-cut C16 Guerbet alcohol is fractionally distilled at 165 to 180 °C under 5 to 15 mbar vacuum to produce water-white, odorless Synative AL G 16 with >= 95%–98% C16 Guerbet purity.
Ataman Kimya supplies Synative AL G 16—alongside the broader BASF sustainable solvent, ester, and surfactant portfolio—from ready warehouse stocks in Turkey to lubricant, metalworking fluid, agrochemical, and specialty chemical manufacturers.


PHYSICAL AND CHEMICAL PROPERTIES OF SYNATIVE AL G 16


Quantitative physical constants, tribological metrics, and analytical specification ranges for commercial Synative AL G 16 (2-Hexyldecanol, CAS 2425-77-6, EC 219-370-1) are presented below with their standard DIN, ISO, ASTM, and DGF test methods:
Chemical Identity and Registry Numbers: 2-Hexyldecan-1-ol / 2-Hexyl-1-decanol (C16 Guerbet Alcohol); CAS No. 2425-77-6; EC / EINECS No. 219-370-1; INCI Name: HEXYLDECANOL
Molecular Formula and Molar Mass: C16H34O (CH3(CH2)7CH[(CH2)5CH3]CH2OH); Molecular Weight = 242.44 g/mol
Physical State and Appearance (at 20 °C and 101.3 kPa): Clear, colorless to slightly yellowish oily liquid, free from suspended matter or turbidity
Odor: Practically odorless to very faint, clean fatty-alcohol note
Color (APHA / Hazen Pt-Co Scale, DIN ISO 6271 / ASTM D1209): <= 20 to 40 APHA units (typical batch value: 5 to 15 APHA, water-white)
Assay / C16 Guerbet Alcohol Purity (Capillary GC): >= 95.0% to 98.5% w/w 2-Hexyldecan-1-ol (Residual C8 1-octanol monomer <= 0.5% w/w)
Hydroxyl Value (DGF C-V 17a / ISO 4326 / ASTM E222): 225.0 to 235.0 mg KOH/g (typical batch value: 228.0 to 232.5 mg KOH/g; theoretical value for pure C16H34O = 231.42 mg KOH/g)
Acid Value (DGF C-V 2 / DIN EN ISO 660 / ASTM D974): <= 0.50 mg KOH/g (typical batch value: <= 0.05 to 0.15 mg KOH/g)
Saponification Value (DGF C-V 3 / ISO 3657): <= 1.0 mg KOH/g (typical batch value: <= 0.2 to 0.5 mg KOH/g)
Iodine Value (Wijs Method, DGF C-V 11a / ISO 3961): <= 1.0 g I2 / 100 g (typical batch value: 0.10 to 0.45 g I2 / 100 g, confirming near-zero unsaturation and exceptional oxidation stability)
Water / Moisture Content (Karl Fischer Titration, DIN 51777 / ISO 8534): <= 0.10% to 0.20% w/w (typical batch value: 0.02% to 0.06% w/w)
Cloud Point (Cognis Q-P 1315.0 / ASTM D2500): <= -30.0 °C (-22.0 °F)
Pour Point (DIN ISO 3016 / ASTM D97): -60.0 °C (-76.0 °F; remains a mobile, crystal-free liquid down to -50 to -60 °C)
Boiling Point and Distillation Range: 305.0 to 315.0 °C at 101.3 kPa (760 mmHg); 168.0 to 175.0 °C at 2.0 kPa (15 mmHg)
Flash Point (Cleveland Open Cup, DIN ISO 2592 / ASTM D92): >= 160.0 °C (320.0 °F, typically 162 to 172 °C; Pensky-Martens ASTM D93: ~152 to 160 °C)
Fire Point (Brennpunkt, DIN ISO 2592): >= 170.0 °C (338.0 °F)
Auto-Ignition Temperature (DIN 51794): ~250.0 to 265.0 °C (482 to 509 °F)
Vapor Pressure: < 0.01 Pa (< 0.0001 hPa) at 20 °C; ~1.2 Pa at 60 °C; < 100 Pa at 120 °C (low volatility, VOC-exempt under EU Directive 2004/42/EC with boiling point > 250 °C)
Density at 20 °C (DIN 51757 V4 / ISO 12185): 0.8350 to 0.8400 g/cm3 (835.0 to 840.0 kg/m3, typically 0.8375 g/cm3 at 20 °C; 0.824 g/cm3 at 40 °C)
Dynamic Viscosity at 20 °C (DGF C-IV 7 / Brookfield): 40.0 to 50.0 mPa·s (cP, typically 44 to 47 mPa·s at 20 °C)
Kinematic Viscosity (ASTM D445 / DIN 51562): ~52.0 to 58.0 mm2/s (cSt) at 20 °C; ~22.5 to 25.5 mm2/s (cSt) at 40 °C; ~4.6 to 5.3 mm2/s (cSt) at 100 °C
Refractive Index at 20 °C (nD20, DGF C-IV 5 / ISO 6320): 1.4400 to 1.4600 (narrow specification typically 1.4480 to 1.4515 at 20 °C)
Surface Tension (Neat Liquid at 20 °C): ~28.5 to 30.0 mN/m (excellent wetting and spreading on low-energy metal, plastic, and waxy plant leaf surfaces)
Solubility and Compatibility Profile: Practically insoluble in water (< 0.05 mg/L at 25 °C); miscible in all proportions with mineral oils (paraffinic Group I/II/III, naphthenic), polyalphaolefins (PAO), polyisobutylenes, synthetic mono- and polyol esters, vegetable triglyceride oils, ethanol (96%), isopropanol, acetone, diethyl ether, toluene, xylene, and aliphatic hydrocarbons; Partition Coefficient (Log Kow, OECD 117): ~6.6 to 7.1.


WHY EACH IMPORTANT PROPERTY OF SYNATIVE AL G 16 MATTERS IN PRACTICE


Metalworking-fluid formulators, rolling-oil engineers, synthetic ester chemists, and agrochemical R&D teams evaluate specific quantitative parameters on the Synative AL G 16 COA because each constant directly governs machine-shop performance and chemical reactivity:
- Cloud Point <= -30 °C and Pour Point -60 °C (DIN ISO 3016): Linear C14–C18 fatty alcohols and methyl esters freeze into solid wax crystals between +10 °C and +58 °C during winter transport or cold-climate outdoor equipment operation, clogging lubricant filters and spray nozzles. Because Synative AL G 16 remains crystal-clear below -30 °C and pours down to -60 °C, neat cutting oils, MQL spray lubricants, and water-miscible MWF concentrates formulated with Synative AL G 16 require zero heated storage and never suffer winter phase separation!

- Ultra-Low Iodine Value (<= 1.0 g I2/100 g, typically < 0.4) and Zero Unsaturation: In aluminum cold-rolling oils, stamping fluids, and long-life CNC coolants, unsaturated additives (such as oleyl alcohol, oleic acid, or blown rapeseed oil with Iodine Values of 80–110) polymerize thermally on hot tool bits (200–400 °C) to form sticky lacquer deposits and decompose into brown carbon stains when rolled aluminum sheet is annealed at 300–450 °C. Synative AL G 16 is 100% saturated, evaporating cleanly during aluminum annealing with zero brown staining ('mill stain-free') and never forming sticky varnish on CNC slideways.
- Controlled Dynamic Viscosity (40 to 50 mPa·s at 20 °C / ~24 cSt at 40 °C) and High Flash Point (>= 160 °C): Provides the ideal viscosity for Minimum Quantity Lubrication (MQL / near-dry machining) aerosol micro-droplet generation and high-speed aluminum rolling without creating hazardous volatile organic vapor mists or fire hazards (flash point >= 160 °C vs. < 100 °C for light hydrocarbon solvents).
- Tight Hydroxyl Value (225 to 235 mg KOH/g) and Low Acid/Saponification Values (<= 0.5 / <= 1.0 mg KOH/g): Guarantees exact stoichiometric molar equivalence (Equivalent Weight ~242.4 g/eq) when Synative AL G 16 is reacted with dicarboxylic acids (adipic, sebacic, azelaic) or acrylic/methacrylic acid in synthetic ester and monomer synthesis, while confirming the absence of corrosive free acids or unreacted esters.


HOW DOES SYNATIVE AL G 16 WORK AT THE MOLECULAR AND TRIBOLOGICAL LEVEL?


Synative AL G 16 functions across neat oils, aqueous emulsions, and reactive syntheses through four distinct physicochemical mechanisms:

 Polar-Nonpolar Boundary Lubrication Film Formation on Metal Surfaces: During metal cutting, drilling, forming, or rolling, high contact pressures squeeze non-polar mineral oil or PAO molecules out of the microscopic asperity contact zone. Because Synative AL G 16 possesses a polar primary hydroxyl headgroup (-CH2OH) with a strong dipole moment (1.7 Debye), it adsorbs preferentially onto positively charged nascent aluminum, steel, titanium, and copper-alloy surfaces via coordinate and hydrogen bonding. The twin-tailed C6/C8 hydrocarbon chains project outward into the oil film, forming a dense, shear-resistant boundary brush layer (~1.5 nm thick) that prevents metal-to-metal welding, reduces cutting torque by 15% to 30%, and produces mirror-bright machined surface finishes.

 Amphiphilic Palissade-Layer Coupling in Water-Miscible Metalworking Fluids: In water-miscible MWF concentrates (containing mineral/ester oil, sodium petroleum sulfonates, tall oil or oleic acid amine soaps, and fatty alcohol ethoxylates), mismatched hydrophilic-lipophilic balances cause concentrate haziness or gelation upon water dilution. Synative AL G 16 partitions directly into the surfactant monolayer at the oil-water interface: its -CH2OH group hydrogen-bonds with sulfonate, carboxylate, and ether-oxygen headgroups while its bulky V-shaped C6/C8 alkyl wedge disorders rigid liquid-crystalline packing. This reduces interfacial tension (< 0.1 mN/m), couples polar and non-polar components into crystal-clear concentrates, and ensures spontaneous emulsification into stable sub-100 nm translucent microemulsions in both soft and hard water.

 Marangoni Foam Destabilization in High-Pressure Coolant Recirculation: When high-pressure CNC coolant pumps (40 to 100 bar) entrain air bubbles into aqueous metalworking emulsions, linear surfactants form elastic Gibbs-Marangoni soap films that trap air as stubborn surface foam. The branched V-shaped C16 Guerbet alcohol molecules of Synative AL G 16 diffuse into the bubble lamellae and prevent tight lateral chain packing, lowering film surface viscosity and causing entrained air bubbles to coalesce and burst rapidly at the sump surface.

 Cuticular Wax Plasticization & Spreading in Crop Protection Adjuvants: On hydrophobic plant leaves (cuticular wax surface energy ~25–30 mN/m), the low surface tension (~29 mN/m) and branched liquid structure of Synative AL G 16 enable spray droplets to spread uniformly and plasticize epicuticular wax layers gently without phytotoxicity, accelerating foliar uptake of systemic agrochemical active ingredients.


WHAT PROBLEMS CAN SYNATIVE AL G 16 HELP SOLVE?


Lubricant engineers, metalworking-fluid chemists, aluminum rolling mill operators, and specialty chemical producers incorporate Synative AL G 16 to eliminate six major operational and formulation failures:

Sticky oxidation varnish, rancid odors, and machine-tool gumming from unsaturated Oleyl Alcohol
Water-miscible and neat metalworking fluids formulated with unsaturated oleyl alcohol (Iodine Value ~90) oxidize over 3 to 6 months in aerated sumps, leaving sticky amber gum on CNC guideways, linear encoders, and tool changers. Replacing oleyl alcohol with saturated Synative AL G 16 (Iodine Value <= 0.5) completely eliminates oxidative varnish while improving low-temperature fluidity.

Concentrate phase separation and hard-water soap scum in Semi-Synthetic and Emulsion MWFs
Without an effective amphiphilic coupler, water-miscible MWF concentrates split into two layers during cold winter storage (< 0 °C) or precipitate sticky calcium soaps when diluted into hard factory water (> 400 ppm CaCO3). Adding 2.0% to 6.0% w/w Synative AL G 16 keeps concentrates crystal-clear down to -20 °C and disperses lime soaps in hard-water emulsions.

Brown annealing stains ('oil stain') and poor surface gloss in Aluminum Cold Rolling and Stamping
Conventional fatty esters and high-boiling polymers carbonize during coil annealing of aluminum sheet and foil (300–420 °C), leaving brown carbonaceous stains. Used at 2.0% to 6.0% w/w in low-aromatic hydrocarbon rolling oils, Synative AL G 16 provides high load-bearing boundary lubricity during rolling and volatilizes 100% cleanly without residue or staining during annealing!

Excessive foaming and air entrainment in high-pressure CNC coolants
Linear fatty alcohol ethoxylates and sulfonate emulsifiers foam heavily under high-pressure through-tool coolant jets, causing pump cavitation and sump overflow. Incorporating Synative AL G 16 into the emulsifier package acts as a non-silicone antifoaming co-surfactant that suppresses foam without causing silicone 'fisheye' paint defects on stamped automotive panels.

High pour points and wax crystallization in synthetic ester base stocks
Esters made from linear C16–C18 alcohols solidify above +15 to +40 °C. Esterifying dicarboxylic or polyfunctional acids with beta-branched Synative AL G 16 yields di-2-hexyldecyl adipate/sebacate/azelate esters with pour points below -50 to -60 °C and high viscosity indices (VI > 140).

Hazardous labeling and VOC restrictions of conventional industrial solvents
Many hydrocarbon and glycol-ether solvents carry GHS aspiration toxicity (H304), flammability, or aquatic toxicity labels and count as VOCs. Synative AL G 16 has a boiling point > 305 °C (VOC-exempt), a flash point >= 160 °C, and is completely free from human health hazard and aquatic toxicity labels!


BENEFITS FOR THE MANUFACTURER AND END USER


Selecting Synative AL G 16 from Ataman Kimya delivers tangible performance, regulatory, and cost benefits across the value chain:
Benefits for the Lubricant, MWF, Ester, and Agrochemical Manufacturer:
- Extreme Low-Temperature Handling (Pour Point -60 °C, Cloud Point <= -30 °C): Liquid in all seasons; pumps easily from unheated drums and IBCs even in sub-zero winter warehouses.
- 100% Saturated Oxidative Stability (Iodine Value <= 1.0): Zero double bonds mean indefinite storage stability without yellowing, peroxide build-up, or rancidity.
- Multi-Functional Coupling + Lubricity + Foam Control: Acts simultaneously as an emulsion coupler, boundary lubricity additive, and non-silicone foam suppressor in water-miscible MWFs.
- Label-Free Safety & Biodegradability Profile: Free from GHS human hazard and aquatic toxicity pictograms; VOC-exempt (b.p. > 305 °C); inherently/readily biodegradable and non-bioaccumulative.
Benefits for the Machine Shop, Rolling Mill, and End User:
- Longer Tool Life & Clean Machine Tools: Superior non-corrosive boundary lubrication on aluminum, titanium, copper, brass, and steel with zero sticky guideway varnish.
- Stain-Free Aluminum Annealing & Paintable Stamped Parts: Clean thermal volatilization during coil annealing and silicone-free defoaming that never interferes with post-machining welding or automotive painting.


APPLICATIONS OF SYNATIVE AL G 16


Synative AL G 16 is deployed across eight high-value industrial, agricultural, and specialty chemical applications:
1. Water-Miscible Metalworking Fluids (Semi-Synthetic, Soluble-Oil Emulsion, and Microemulsion Coolants — Coupler, Co-Emulsifier, Lubricity Booster & Foam Suppressor)
2. Neat Metalworking Oils (Cutting, Drilling, Deep-Hole Boring, Tapping, Broaching, Stamping, Drawing, and Fine-Blanking Oils)
3. Aluminum, Copper, and Brass Cold-Rolling Oils and Foil-Rolling Lubricants (Non-Staining Annealing Additive)
4. Minimum Quantity Lubrication (MQL) and Near-Dry Spray Lubrication Systems for CNC Machining and Sawing
5. Chemical Intermediate for Low-Pour-Point Synthetic Lubricant Base Esters (Di-C16 Guerbet Adipates, Sebacates, Azelates, Dimerates, and Trimellitates)
6. Chemical Intermediate for Low-Foam Branched Surfactants (C16 Guerbet Alcohol Ethoxylates/Alkoxylates, Guerbet Ether Sulfates, and Guerbet Phosphate Esters)
7. Biodegradable Agrochemical Specialty Solvent, EC/OD Co-Solvent, and Cuticular Wax Penetration Adjuvant
8. Personal Care & Cosmetic Liquid Emollient, Pigment Wetting Oil, and Deodorant/Sunscreen Carrier (INCI: HEXYLDECANOL)


WHICH INDUSTRIES USE SYNATIVE AL G 16?


- Metalworking Fluid (MWF) and Industrial Lubricant Blending Industry
- Aluminum, Copper, Brass, and Steel Sheet/Foil Rolling & Metal-Forming Industry
- Synthetic Ester Base-Stock and Aviation/Automotive Lubricant Synthesis Industry
- Surfactant, Alkoxylate, and Phosphate Ester Manufacturing Industry
- Agricultural Crop Protection & Adjuvant Formulation Industry
- Coatings, Defoamer, Printing Ink, and Personal Care / Cosmetics Industry


USE OF SYNATIVE AL G 16 IN WATER-MISCIBLE AND NEAT METALWORKING FLUIDS


Metalworking fluids and metal-forming lubricants represent the core industrial application for Synative AL G 16:
- Water-Miscible Metalworking Fluids (Soluble Oils & Semi-Synthetics, 1.5% to 6.0% w/w in Concentrate): In soluble-oil concentrates (40%–70% mineral/ester oil) and semi-synthetic concentrates (10%–35% oil), Synative AL G 16 serves as the primary amphiphilic coupler that bridges anionic emulsifiers (tall oil fatty acid alkanolamine soaps, petroleum/synthetic sulfonates, ether carboxylates) and nonionic fatty alcohol ethoxylates with the hydrocarbon base oil. Compared to linear alcohols or glycol ethers (like butyl diglycol), Synative AL G 16 provides three simultaneous advantages: (1) it remains in the oil droplet phase upon 5% water dilution to provide boundary lubricity at the cutting tool tip; (2) it suppresses persistent foam in high-pressure CNC sumps; and (3) it carries zero glycol-ether inhalation/reproductive hazard warnings and zero VOC content!

- Neat Cutting, Drilling, Stamping, and Drawing Oils (2.0% to 15.0% w/w): Blended into low-viscosity mineral oils, hydrocracked oils, PAOs, or synthetic esters for machining and stamping aluminum, magnesium, titanium, copper, brass, and stainless steel. Unlike sulfurized olefins or chlorinated paraffins, Synative AL G 16 is completely non-corrosive to yellow metals (ASTM D130 Copper Strip Corrosion = Class 1a) and prevents aluminum galling and tool pick-up.
- Aluminum Sheet and Foil Cold-Rolling Oils (2.0% to 8.0% w/w): Dissolved in narrow-cut dearomatized hydrocarbon rolling base oils (viscosity 2.0 to 4.5 mm2/s at 40 °C), Synative AL G 16 provides polar load-bearing film strength in the roll bite to allow high thickness reductions per pass, and evaporates without leaving brown carbon stains during subsequent coil annealing at 320–420 °C.
- Minimum Quantity Lubrication (MQL) Spray Fluids (10.0% to 100.0% w/w): Used neat or blended with polyol/fatty esters (such as Synative ES TMP 05 or Synative ES 2423 GTO) in aerosol spray lubrication systems (consuming only 10 to 50 mL/hour) for high-speed sawing, milling, and drilling of aerospace aluminum and automotive castings.


USE OF SYNATIVE AL G 16 IN ESTER SYNTHESIS, SURFACTANTS AND AGROCHEMICALS


- Synthesis of Low-Pour-Point Guerbet Esters for Synthetic Lubricants: Reacting 2 moles of Synative AL G 16 with 1 mole of Adipic Acid, Sebacic Acid, Azelaic Acid, or C36 Dimer Acid (or 3 moles with Trimellitic Anhydride) produces branched C16 Guerbet diesters/triesters characterized by pour points below -55 to -65 °C, high flash points (> 240–280 °C), high viscosity indices (VI = 140 to 175), low Noack volatility, and exceptional hydrolytic stability (because the C-2 hexyl branch sterically shields the adjacent ester carbonyl linkage against attack by water!). These esters are prized in arctic hydraulic fluids, wind-turbine gear oils, 0W-20 automotive engine oils, and textile fiber spin finishes.
- Synthesis of Low-Foam Guerbet Ethoxylates and Phosphate Esters: Ethoxylating Synative AL G 16 with 3 to 10 moles of ethylene oxide (and optionally capping with propylene oxide) produces fast-wetting, low-foaming nonionic surfactants (such as the Synative XA series); reacting Synative AL G 16 with P2O5 or polyphosphoric acid produces oil-soluble C16 Guerbet phosphate esters used as ashless anti-wear / extreme-pressure (AW/EP) and aluminum anti-stain additives in metalworking fluids.
- Biodegradable Agrochemical Solvents & Adjuvants (3.0% to 25.0% w/w): Used in Emulsifiable Concentrates (EC), Oil Dispersions (OD), and tank-mix spray oils as a non-phytotoxic, low-VOC bio-derived co-solvent and leaf-cuticle penetration enhancer.


FORMULATION AND PROCESS CONSIDERATIONS WHEN USING SYNATIVE AL G 16


To maximize the coupling, tribological, and synthetic efficiency of Synative AL G 16 in plant production, formulators should observe four practical engineering guidelines:
Optimizing the Coupler-to-Emulsifier Ratio in Water-Miscible MWFs: When formulating a semi-synthetic or soluble-oil metalworking fluid concentrate, start with a Synative AL G 16 dosage equal to 15% to 30% of the total primary emulsifier package weight (typically 2.0% to 5.0% w/w on total concentrate weight). Add Synative AL G 16 after blending the base oil, fatty acids/sulfonates, and alkanolamines (MEA/TEA/DGA/MIPA): if the concentrate appears slightly hazy or viscous, incremental additions of 0.5% w/w Synative AL G 16 will snap the concentrate to crystal clarity and adjust the 5% dilution appearance from milky white to translucent blue.
Synergistic Combination with Fatty Acid Esters in MQL and Neat Oils: In heavy-duty neat cutting, stamping, and MQL spray fluids, combining 5% to 15% w/w Synative AL G 16 (fast-diffusing polar alcohol boundary additive) with 10% to 30% w/w of a high-molecular-weight polyol ester (such as trimethylolpropane trioleate Synative ES TMP 05 or glycerol trioleate) creates a synergistic dual-layer lubrication film: the smaller C16 Guerbet alcohol molecules rapidly wet freshly cut metal micro-cracks, while the high-MW ester provides hydrodynamic cushion.
Esterification & Phosphation Reaction Conditions: When esterifying Synative AL G 16 with carboxylic acids (using p-TSA, methanesulfonic acid, or titanate/tin catalysts at 180 to 220 °C under nitrogen sparging or vacuum), its 100% primary -CH2OH group reacts rapidly to Acid Values < 0.1 mg KOH/g without dehydration into olefins (unlike secondary alcohols, which dehydrate under acid catalysis!).
Storage and Material Compatibility: Store below 30 °C in original steel or HDPE drums or stainless-steel bulk tanks (e.g., AISI 316Ti / DIN 1.4571); compatible with Viton, NBR, EPDM, and PTFE seals.


TYPICAL USE LEVELS AND INITIAL FORMULATION APPROACHES FOR SYNATIVE AL G 16


Typical commercial incorporation levels for Synative AL G 16 depend on the lubricant, metalworking fluid, agrochemical, or personal-care system:
- Water-Miscible Metalworking Fluid Concentrates (Semi-Synthetics, Microemulsions, and Soluble Oils): 1.5% to 6.0% w/w in the concentrate (functioning as amphiphilic coupler, co-emulsifier, hard-water lime-soap dispersant, foam reducer, and boundary lubricity booster).
- Neat Cutting, Drilling, Tapping, and Deep-Hole Boring Oils: 2.0% to 12.0% w/w in mineral oil, hydrocracked oil, or synthetic ester base fluid.
- Metal Stamping, Deep Drawing, Fine-Blanking, and Tube-Bending Fluids: 3.0% to 15.0% w/w.
- Aluminum and Copper Cold-Rolling & Foil-Rolling Oils: 2.0% to 8.0% w/w in narrow-cut dearomatized hydrocarbon base oil (providing non-staining boundary lubricity).
- Minimum Quantity Lubrication (MQL) Spray Fluids & Sawing Lubricants: 15.0% to 100.0% w/w (used neat or blended 20:80 to 50:50 with synthetic polyol esters).
- Synthetic Ester & Phosphate Ester Manufacturing: Stoichiometric reagent (1.00 to 1.05 molar equivalents of -CH2OH per carboxyl/phosphorus equivalent, ~242.4 g per mole).
- Agrochemical Emulsifiable Concentrates (EC), Oil Dispersions (OD), and Tank-Mix Adjuvants: 3.0% to 20.0% w/w.
- Personal Care & Cosmetics (Creams, Lotions, Sunscreens, Deodorant Sticks — INCI: HEXYLDECANOL): 2.0% to 15.0% w/w as a high-spreading, non-greasy liquid emollient and pigment wetting oil.
The four laboratory and pilot frameworks below illustrate preliminary R&D evaluation protocols for qualified technical personnel.


EXAMPLE 1: BENCH-SCALE FORMULATION AND COUPLING EVALUATION OF A BORON-FREE, FORMALDEHYDE-FREE SEMI-SYNTHETIC METALWORKING FLUID CONCENTRATE


Purpose: To evaluate concentrate clarity, low-temperature stability (-10 °C to +50 °C), hard-water emulsion stability (500 ppm CaCO3), CNOMO/IP 312 foam suppression, and tapping torque lubricity using Synative AL G 16 as the primary coupler and lubricity co-surfactant in a modern water-miscible semi-synthetic metalworking fluid.
Initial screening concentrate formulation (per 1,000.0 g batch):
- Naphthenic or Paraffinic Group II Mineral Base Oil (ISO VG 22): 250.0 g (25.0% w/w)
- Tall Oil Fatty Acid (TOFA, Acid Value ~195 mg KOH/g) + Sebacic/Dicarboxylic Corrosion Inhibitor Acid: 85.0 g (8.5% w/w)
- Nonionic Fatty Alcohol Ethoxylate Emulsifier (C16-C18 + 5 EO / Oleth-5): 75.0 g (7.5% w/w)
- Anionic Tall Oil / Sulfonate or Ether Carboxylate Co-Emulsifier: 40.0 g (4.0% w/w)
- Synative AL G 16 (2-Hexyldecanol, CAS 2425-77-6, Amphiphilic Coupler, Boundary Lubricity Agent & Foam Suppressor): 40.0 g (4.0% w/w)
- Monoethanolamine (MEA) + Triethanolamine (TEA) + Diglycolamine (DGA) Neutralizer/Alkalinity Reserve Package: 95.0 g (9.5% w/w)
- Synthetic Polyol Ester Lubricity Booster (e.g., TMP Trioleate): 40.0 g (4.0% w/w)
- Tolyltriazole (Yellow Metal Corrosion Inhibitor) + Boron/Biocide-Free Fungicide (IPBC): 5.0 g (0.5% w/w)
- Deionized Water (balance to 1,000.0 g): 370.0 g (37.0% w/w)
Laboratory evaluation procedure:
- Stage 1 (Concentrate Blending & Titration Coupling): Charge the 250.0 g mineral oil, 40.0 g polyol ester, 85.0 g carboxylic acids, 75.0 g nonionic ethoxylate, and 40.0 g anionic co-emulsifier into a jacketed mixing beaker at 35–40 °C and stir for 15 minutes. Add the 95.0 g alkanolamine package and 370.0 g water and mix for 20 minutes (note that before coupler addition, the uncoupled concentrate is hazy/viscous). Now titrate in the 40.0 g Synative AL G 16 under gentle stirring: observe that the concentrate immediately turns into a crystal-clear, bright amber single-phase liquid!
- Stage 2 (Concentrate Freeze-Thaw & Thermal Storage Test): Subject aliquots of the concentrate to 3 freeze-thaw cycles (-10 °C for 24 h / +25 °C for 24 h) and 14 days at +50 °C; verify zero phase separation, zero cloudiness, and zero sediment.
- Stage 3 (5% Dilution Emulsion Stability, Foam & Tapping Torque QC): Dilute the concentrate at 5.0% w/w into both 50 ppm soft water and 500 ppm CaCO3 hard water at 20 °C. Verify spontaneous formation of a translucent blue microemulsion (particle size < 80 nm, pH 9.3, DIN 51360-2 cast-iron chip corrosion Grade 0/0), measure recirculating spray foam in a 1,000 mL cylinder at 4 L/min flow (verify foam collapses to 0 mL within < 15 seconds after pump shut-off), and measure Microtap tapping torque on 6061-T6 aluminum and 1018 steel (demonstrating 12%–18% lower torque than a butyl-diglycol-coupled control).


EXAMPLE 2: ALUMINUM COLD-ROLLING AND STAMPING FLUID EVALUATION FOR MILL-STAIN-FREE ANNEALING


Purpose: To evaluate boundary film strength, friction reduction, and clean residue-free volatilization during 360 °C coil annealing in an aluminum sheet/foil cold-rolling and precision stamping oil formulated with Synative AL G 16.
Initial screening formulation (per 1,000.0 g batch):
- Narrow-Cut Dearomatized Hydrocarbon Base Fluid (boiling range 230 to 270 °C, aromatics < 0.05%, viscosity 2.8 mm2/s at 40 °C): 945.0 g (94.5% w/w)
- Synative AL G 16 (2-Hexyldecanol, CAS 2425-77-6, Iodine Value <= 0.5, Hydroxyl Value 230 mg KOH/g): 50.0 g (5.0% w/w)
- Ashless Phenolic Antioxidant (BHT / Irganox L135): 5.0 g (0.5% w/w)
Laboratory evaluation procedure:
- Blend the 945.0 g dearomatized hydrocarbon fluid, 50.0 g Synative AL G 16, and 5.0 g antioxidant at 20 °C for 10 minutes to obtain a water-white, odorless rolling fluid (kinematic viscosity ~3.1 mm2/s at 40 °C, cloud point < -35 °C).
- Evaluate boundary lubrication performance on a Reichert wear balance or Four-Ball wear tester (ASTM D4172, 40 kg load, 1,200 rpm, 60 min on aluminum-on-steel and steel-on-steel pairs): verify that 5.0% Synative AL G 16 reduces wear scar diameter by 35% to 45% compared to the neat hydrocarbon base oil.
- Perform the Aluminum Annealing Stain Test: Coat clean 1100 or 3003 aluminum alloy panels with a 5.0 g/m2 film of the test rolling oil, place in a muffle furnace at 360 °C for 60 minutes under nitrogen/air, and inspect cooled panels visually and by colorimeter against an oleyl-alcohol control: verify Grade 0 ('completely free of brown or yellow annealing stain').


EXAMPLE 3: MINIMUM QUANTITY LUBRICATION (MQL) AEROSOL SPRAY FLUID FOR AEROSPACE ALUMINUM AND TITANIUM MACHINING


Purpose: To formulate a biodegradable, high-flash-point, low-mist Minimum Quantity Lubrication (MQL) fluid for high-speed CNC sawing, milling, and drilling of aluminum and titanium alloys using Synative AL G 16.
Initial screening formulation (per 1,000.0 g batch):
- Synative AL G 16 (2-Hexyldecanol, CAS 2425-77-6, fast-wetting polar boundary alcohol, Pour Point -60 °C, Flash Point >= 160 °C): 350.0 g (35.0% w/w)
- Trimethylolpropane Trioleate or Saturated Polyol Ester (e.g., Synative ES TMP 05, ISO VG 46): 635.0 g (63.5% w/w)
- Ashless Amine-Neutralized Alkyl Phosphate Ester (anti-wear / EP booster): 10.0 g (1.0% w/w)
- Hindered Phenolic + Aminic Antioxidant Package: 5.0 g (0.5% w/w)
Laboratory evaluation procedure:
- Blend all four components at 25–30 °C for 15 minutes to obtain a clear, pale yellow MQL fluid with a kinematic viscosity of ~32 mm2/s at 40 °C, a pour point < -45 °C, and a Cleveland Open-Cup flash point > 210 °C.
- Feed the fluid through a dual-channel MQL aerosol generator at 25 mL/hour (5.0 bar air pressure) during high-speed end-milling and drilling of Ti-6Al-4V titanium and 7075-T6 aerospace aluminum: verify uniform sub-5-micron droplet atomization without stray misting, zero built-up edge (BUE) on carbide flutes, and effortless warm alkaline aqueous wash-off prior to anodizing or painting.


EXAMPLE 4: SYNTHESIS OF DI-(2-HEXYLDECYL) ADIPATE LOW-POUR-POINT SYNTHETIC LUBRICANT BASE ESTER


Purpose: To synthesize Di-(2-hexyldecyl) Adipate (a branched C16 Guerbet diester base stock) from Synative AL G 16 and Adipic Acid and evaluate its kinematic viscosity, Viscosity Index (VI), and -55 °C pour point.
Initial reactor charge (per ~1,000 g ester product):
- Synative AL G 16 (2-Hexyldecanol, MW 242.44 g/mol, Hydroxyl Value 230 mg KOH/g): 845.0 g (3.485 moles, representing a 5.6% molar excess over stoichiometric 3.30 moles)
- High-Purity Adipic Acid (Hexanedioic acid, C6H10O4, MW 146.14 g/mol): 241.1 g (1.650 moles)
- Tetra-isopropyl Titanate (Tyzor TPT) or Methanesulfonic Acid Esterification Catalyst: 1.0 g (0.09% w/w)
Laboratory synthesis and evaluation procedure:
- Charge the 845.0 g Synative AL G 16 and 241.1 g adipic acid into a 2-Liter four-neck glass reactor equipped with a mechanical stirrer, nitrogen sparge tube, thermometer, and Dean-Stark / fractionating distillation head. Purge with dry nitrogen and heat to 160 °C, add the 1.0 g titanate catalyst, and ramp temperature from 170 °C to 215 °C over 4 hours while continuously distilling off reaction water (~59.4 g theoretical H2O) under reduced pressure (gradually reducing vacuum to 30 mbar) until Acid Value drops below 0.15 mg KOH/g.
- Strip the 5.6% excess unreacted Synative AL G 16 under high vacuum (2 to 5 mbar at 210 °C) with nitrogen sparging, treat with 0.5% aqueous sodium carbonate / bleaching clay, dehydrate, and filter through a 1-micron pad.
- Characterize the finished Di-(2-hexyldecyl) Adipate ester (MW 595.0 g/mol): verify Acid Value <= 0.05 mg KOH/g, Hydroxyl Value <= 2.0 mg KOH/g, Kinematic Viscosity at 40 °C ~19.5 to 21.5 mm2/s, Kinematic Viscosity at 100 °C ~4.5 to 4.8 mm2/s, Viscosity Index (ASTM D2270) >= 145, Pour Point (DIN ISO 3016) <= -55 to -60 °C, and Cleveland Open-Cup Flash Point >= 235 °C.


COMPATIBILITY AND INCOMPATIBILITY OF SYNATIVE AL G 16


Evaluating chemical, base-oil, and elastomer compatibility is essential when formulating Synative AL G 16 into industrial lubricants, coolants, and specialty chemical products:
- Universal Miscibility with Base Oils and Organic Solvents: Miscible in all proportions with paraffinic (Group I, II, III, and GTL) and naphthenic mineral oils, polyalphaolefins (PAO 2 to PAO 100), alkylated naphthalenes, polyisobutylenes (PIB), synthetic polyol and dicarboxylic esters, vegetable triglyceride oils (rapeseed, sunflower, soybean), white spirits, aromatic hydrocarbons, ketones, and short-chain alcohols.
- Full Compatibility with Lubricant and MWF Additives: Completely compatible with anionic sulfonates, tall oil and fatty acid alkanolamine soaps, ether carboxylates, nonionic fatty alcohol ethoxylates, EO-PO block copolymers, sulfurized esters/olefins, phosphate and thiophosphate esters (ZDDP / ashless phosphates), overbased calcium/sodium sulfonates, phenolic and aminic antioxidants, and triazole corrosion inhibitors.
- Incompatibility with Strong Oxidizing Acids and Reactive Isocyanates/Acid Chlorides: Keep neat Synative AL G 16 segregated from concentrated nitric acid, chromic acid, hydrogen peroxide (> 30%), perchlorates, and strong oxidizers. Because Synative AL G 16 is a primary alcohol (-CH2OH), it reacts exothermically with carboxylic acid chlorides, acid anhydrides, chlorosilanes, and diisocyanates (MDI/TDI/HDI) unless intentionally reacted under controlled synthesis conditions.
- Elastomer and Metal Compatibility: 100% non-corrosive to steel, cast iron, aluminum, magnesium, titanium, copper, brass, and bronze (ASTM D130 = 1a). Compatible with standard industrial seal elastomers including Fluoroelastomer (FKM / Viton), Nitrile Rubber (NBR, high-ACN), Hydrogenated Nitrile (HNBR), EPDM, and PTFE.


SIMILAR PRODUCTS AND ALTERNATIVES TO SYNATIVE AL G 16


When designing a metalworking fluid, rolling oil, synthetic ester, or cosmetic/agrochemical formulation, chemists compare Synative AL G 16 (C16 Guerbet Alcohol) against higher and lower Guerbet alcohols (Synative AL G 20, C12/C24 Guerbet alcohols), unsaturated oleyl alcohol, linear fatty alcohols (Synative AL S / AL T), and glycol-ether couplers.


SYNATIVE AL G 16 AND SYNATIVE AL G 20 (C20 GUERBET ALCOHOL / OCTYLDODECANOL, CAS 5333-42-6)


Synative AL G 20 (2-Octyldodecan-1-ol, C20H42O, MW 298.55 g/mol, INCI: OCTYLDODECANOL) is the twenty-carbon homologue synthesized by Guerbet dimerization of linear C10 1-decanol.
Compared with Synative AL G 20 (which has a higher dynamic viscosity of ~58–65 mPa·s at 20 °C, lower Hydroxyl Value of ~180–195 mg KOH/g, and higher boiling point of ~340–360 °C), Synative AL G 16 (C16H34O, MW 242.44 g/mol, viscosity 40–50 mPa·s at 20 °C, Hydroxyl Value 225–235 mg KOH/g, pour point -60 °C) offers lower viscosity for faster wetting and spray atomization, higher polar hydroxyl group concentration per gram for stronger emulsifier coupling in water-miscible MWFs, and cleaner, more complete volatilization without residue during aluminum coil annealing at 340–400 °C.


SYNATIVE AL G 16 AND UNSATURATED OLEYL ALCOHOL (SYNATIVE AL 90/95 V / HD-OCENOL, CAS 143-28-2)


Oleyl Alcohol (cis-9-Octadecen-1-ol, C18H36O, MW 268.48 g/mol) is a linear monounsaturated fatty alcohol containing one cis-carbon-carbon double bond (Iodine Value ~85 to 95 g I2/100 g).
While oleyl alcohol is an effective traditional lubricity additive and coupler, its olefinic double bond oxidizes under heat and air to form sticky polymeric gums, dark varnish, and rancid aldehydes, and its cloud/solidification point is +5 to +13 °C (causing winter freezing). Synative AL G 16 is 100% saturated (Iodine Value <= 0.5–1.0), never oxidizes into sticky varnish, and stays crystal-clear down to -30 °C (pour point -60 °C).


SYNATIVE AL G 16 AND LINEAR C12–C18 FATTY ALCOHOLS (SYNATIVE AL S / SYNATIVE AL T / CETYL ALCOHOL)


Linear saturated fatty alcohols—such as Lauryl/Myristyl Alcohol C12–C14 (Synative AL S, melting range 22–26 °C), Cetyl Alcohol C16 (melting point 49 °C), and Stearyl Alcohol C18 (melting point 58 °C)—crystallize into solid waxes at cool ambient temperatures.
Whenever a formulation requires a saturated primary alcohol that remains a free-flowing, pumpable liquid at room and sub-zero temperatures without heating—and that will not precipitate wax crystals out of mineral oils or emulsions at 0 °C—beta-branched Synative AL G 16 is the definitive liquid replacement.


SYNATIVE AL G 16 AND OXO-PROCESS MULTI-BRANCHED ISOTRIDECANOL / ISOHEXADECANOL


Petrochemical Oxo Alcohols (such as Isotridecanol C13, CAS 27458-92-0, or multi-branched isohexadecanol) are complex isomeric mixtures carrying multiple random methyl branches along the carbon chain.
Oxo alcohols have a sharper, pungent petrochemical odor, higher volatility/misting at equal viscosity, slower biodegradability due to quaternary/multi-methyl branching, and carry aquatic toxicity or skin irritation classifications in several jurisdictions. Synative AL G 16 has a single defined beta-branch, is virtually odorless, carries zero human hazard or aquatic toxicity labels, and offers superior lubricity and biodegradability.


SYNATIVE AL G 16 AND BUTYL DIGLYCOL (DEGBE / BDG, CAS 112-34-5) IN MWF COUPLING


Diethylene Glycol Monobutyl Ether (Butyl Diglycol, BDG, CAS 112-34-5) is a water-soluble glycol ether traditionally used as a coupler in water-miscible metalworking fluids.
However, BDG partitions into the water phase upon dilution (providing zero lubricity at the cutting tool), evaporates as a regulated VOC (boiling point 230 °C), and faces increasing regulatory restrictions in the EU under REACH Annex XVII (Entry 55 for spray applications). Synative AL G 16 is VOC-exempt (boiling point > 305 °C), label-free, and remains inside the emulsified oil droplets to boost cutting lubricity and suppress foam simultaneously!


QUALITY GRADES, QUALITY CONTROL AND PURCHASING CRITERIA FOR SYNATIVE AL G 16


When qualifying Synative AL G 16 or equivalent C16 Guerbet Alcohol grades from Ataman Kimya, R&D and Quality Control laboratories verify the following critical analytical and functional parameters:
- 1. Industrial Lubricant, MWF & Synthesis Grade (Synative AL G 16): Colorless to slightly yellowish clear liquid with C16 Guerbet Alcohol (2-Hexyldecanol) Purity >= 95%, Hydroxyl Value 225–235 mg KOH/g, Acid Value <= 0.5 mg KOH/g, Saponification Value <= 1.0 mg KOH/g, Iodine Value <= 1.0 g I2/100 g, Cloud Point <= -30 °C, Pour Point -60 °C, Density (20 °C) 0.835–0.840 g/cm3, Viscosity (20 °C) 40–50 mPa·s, and Flash Point (COC) >= 160 °C.
- 2. Personal Care / Dermo-Cosmetic Grade Counterpart (Eutanol G 16 / INCI: HEXYLDECANOL): Ultra-deodorized cosmetic emollient grade for skin care creams, sunscreens, lipsticks, and deodorant sticks.
- 3. Complementary Synative & Agnique Products Available from Ataman Kimya:
  - Synative AL G 16: C16 Guerbet Alcohol (2-Hexyldecanol, CAS 2425-77-6).
  - Synative AL G 20: C20 Guerbet Alcohol (2-Octyldodecanol, CAS 5333-42-6).
  - Synative AL 90/95 V: Vegetable Oleyl Alcohol (C18:1, CAS 143-28-2).
  - Synative AL S / Synative AL T: Linear C12–C14 and C12–C18 Fatty Alcohols.
  - Synative ES Series (ES TMP 05, ES 2423 GTO, ES 2810, ES EHK): Synthetic Polyol and Fatty Acid Lubricant Esters.
Incoming Quality-Control (QC) Parameters to Verify on Every Shipment:
- Chemical Identity and CAS / EC Numbers (CAS 2425-77-6 / EC 219-370-1)
- Appearance & Color (Clear liquid, Pt-Co / APHA <= 20–40) and Odor
- Hydroxyl Value (225 to 235 mg KOH/g), Acid Value (<= 0.5 mg KOH/g), and Saponification Value (<= 1.0 mg KOH/g)
- Iodine Value (<= 1.0 g I2/100 g) and Karl Fischer Water Content (<= 0.10%–0.20% w/w)
- Cloud Point (<= -30 °C), Pour Point (-60 °C), Density at 20 °C (0.8350–0.8400 g/cm3), Dynamic Viscosity at 20 °C (40–50 mPa·s), Refractive Index at 20 °C (1.4400–1.4600), and Flash Point (>= 160 °C)


STORAGE AND HANDLING OF SYNATIVE AL G 16


Warehouse and Tank Storage Conditions for Synative AL G 16: Store Synative AL G 16 (2-Hexyldecanol) in tightly sealed original steel or high-density polyethylene (HDPE) drums, composite IBC totes, or refined stainless-steel bulk tanks (such as AISI 316Ti / DIN material no. 1.4571 or AISI 304) in a cool, dry, well-ventilated indoor storage area at temperatures below 30 °C, away from direct sunlight, open flames, and strong oxidizing agents.
Sub-Zero Fluidity and Shelf-Life Stability of Synative AL G 16: Unlike linear fatty alcohols or natural esters that solidify in winter and require steam-heated rooms or drum band heaters, Synative AL G 16 has a cloud point below -30 °C and a pour point of -60 °C—meaning it remains a crystal-clear, low-viscosity, immediately pumpable liquid even in unheated winter warehouses down to -30 °C! Furthermore, because Synative AL G 16 is a 100% saturated primary alcohol (Iodine Value <= 1.0), it resists atmospheric autoxidation and peroxide formation. In sealed original drums stored below 30 °C, Synative AL G 16 has a minimum certified shelf life of at least 12 to 24+ months without any change in analytical specification data. Keep containers tightly closed when not in use to prevent atmospheric moisture or dust ingress.

Safe Handling and Environmental Spill Containment for Synative AL G 16: Handle Synative AL G 16 in accordance with good industrial hygiene practices. If aerosol misting or spraying is performed (such as in MQL machining or rolling mills), provide adequate local exhaust ventilation to keep airborne oil mist below occupational exposure limits (typically 5 mg/m3 mineral/synthetic oil mist TWA). In the event of an accidental drum or line spill, note that spilled Synative AL G 16 creates a severe slipping hazard on smooth factory floors! Dike and absorb the liquid immediately using inert absorbent materials (dry sand, diatomaceous earth, vermiculite, or polypropylene oil-absorbent pads), shovel into labeled recovery drums for disposal in accordance with local regulations, and scrub the floor with warm water and an alkaline industrial degreaser.


FIRST AID MEASURES AND SAFETY INFORMATION FOR SYNATIVE AL G 16


First Aid Measures for Synative AL G 16 (2-Hexyldecanol / C16 Guerbet Alcohol, CAS 2425-77-6):
- Inhalation of Synative AL G 16 Vapors or Mists: Because Synative AL G 16 has an extremely low vapor pressure (< 0.01 Pa at 20 °C) and a high boiling point (> 305 °C), it poses no vapor inhalation hazard at ambient temperatures. If a worker inhales concentrated thermal vapors or high-pressure MQL aerosol mists and experiences throat irritation or coughing, move them immediately into fresh air, keep them warm and at rest, and seek medical attention if symptoms persist.
- Skin Contact with Synative AL G 16: Synative AL G 16 is dermatologically non-irritating and non-sensitizing to human skin (widely used at up to 15%–25% in leave-on skin creams under INCI HEXYLDECANOL). In industrial settings, remove oil-soaked work clothing, wash contacted skin thoroughly with soap and water, and launder contaminated clothing before reuse.
- Eye Contact with Synative AL G 16: Direct liquid splash into the eyes may cause mild, transient mechanical redness or watering without corneal injury. Immediately flush the eyes with plenty of lukewarm low-pressure running water or sterile eyewash saline for at least 10 to 15 minutes while holding the eyelids wide open, removing contact lenses if present; consult a physician if redness persists.
- Ingestion of Synative AL G 16: Synative AL G 16 is practically non-toxic by oral ingestion (rat oral LD50 > 5,000 mg/kg bw). If accidentally swallowed, rinse the mouth thoroughly with water; do NOT induce vomiting unless directed by medical personnel, and consult a physician if a substantial quantity was ingested.

Workplace Safety, GHS Classification, and Toxicological Profile of Synative AL G 16:
Under European Union CLP Regulation (EC) No 1272/2008 and UN GHS, Synative AL G 16 (2-Hexyldecan-1-ol, CAS 2425-77-6, EC 219-370-1) is NOT classified as a hazardous substance: it is completely free from human health hazard and aquatic toxicity labels (no GHS pictograms, no signal word, and no H-statements). Noticeably, because its kinematic viscosity at 40 °C is ~24 mm2/s (well above the 20.5 mm2/s threshold), it is NOT classified as an Aspiration Hazard (H304)! Acute oral LD50 (rat) is > 5,000 mg/kg, acute dermal LD50 (rabbit) is > 2,000 mg/kg, Skin/Eye Irritation (OECD 404/405) is non-irritating, Skin Sensitization (OECD 406) is negative, and Ames mutagenicity (OECD 471) is negative. It is biodegradable and exhibits no acute or chronic aquatic toxicity at its water-solubility limit (OECD 201/202/203).

Fire-Fighting Measures and Personal Protective Equipment (PPE):
- Suitable Extinguishing Media: Synative AL G 16 is a high-flash-point liquid (Cleveland Open Cup >= 160 °C, Class IIIB combustible liquid). In the event of a fire, extinguish using alcohol-resistant foam, dry chemical powder (ABC/BC), carbon dioxide (CO2), or fine water fog/spray. NEVER direct a solid high-pressure water jet into burning hot oil, as water (density 1.00 g/cm3) sinks beneath lighter Synative AL G 16 (density 0.838 g/cm3) and flashes violently into steam, scattering burning liquid! Firefighters must wear self-contained breathing apparatus (SCBA).
- Workplace PPE: Wear safety glasses with side shields (EN 166), nitrile or Viton protective gloves (EN 374), and slip-resistant safety boots.
Commercial Packaging and Transport Logistics for Synative AL G 16:
- 170 kg to 180 kg net tight-head steel drums (baked internal lining or refined steel) or high-density polyethylene (HDPE) drums (4 drums per pallet = 680 to 720 kg net)
- 850 kg net composite Intermediate Bulk Containers (IBC totes)
- 20,000 kg to 24,000 kg net stainless-steel ISO tank containers and bulk road tankers
Transport Classification: Synative AL G 16 is Not Regulated as Dangerous Goods for road (ADR/RID), sea (IMDG), or air (IATA) transport (UN Number: Not Regulated; Hazard Class: None; Packing Group: None; Marine Pollutant: No; Customs HS Code: 2905.19 / 3823.70).


WHAT SHOULD BE CONSIDERED WHEN PURCHASING SYNATIVE AL G 16?


When sourcing Synative AL G 16 (2-Hexyldecanol / C16 Guerbet Alcohol) from Ataman Kimya for metalworking fluids, rolling oils, synthetic esters, agrochemicals, or cosmetics, procurement and R&D teams should specify six key technical parameters in their Request for Quotation (RFQ):
- 1. Target End-Use Application: Specify whether Synative AL G 16 is intended for water-miscible metalworking fluid coupling (semi-synthetic or soluble oil), neat cutting/drilling/stamping oils, aluminum cold-rolling oils, MQL spray lubrication, synthetic ester/surfactant chemical synthesis, agrochemical EC/OD formulations, or personal care emollients.
- 2. Required Analytical Specifications: Confirm required Hydroxyl Value (225 to 235 mg KOH/g), maximum Acid Value (<= 0.5 mg KOH/g), maximum Iodine Value (<= 1.0 g I2/100 g), Cloud Point (<= -30 °C), Pour Point (-60 °C), Density at 20 °C (0.835–0.840 g/cm3), and Dynamic Viscosity at 20 °C (40–50 mPa·s).
- 3. Industrial Grade vs. Cosmetic INCI Grade: Clarify whether standard industrial lubricant/synthesis grade (Synative AL G 16) or cosmetic-certified grade (Eutanol G 16 / INCI HEXYLDECANOL) is required.
- 4. Complementary Synative Base Oils, Esters & Emulsifiers: Indicate if you also require co-supplied BASF/Ataman Kimya lubricant components such as Synative AL G 20 (C20 Guerbet alcohol), Synative AL 90/95 V (oleyl alcohol), or Synative ES polyol esters.
- 5. Regulatory & Ecolabel Requirements: Specify any required EU REACH registration confirmation, German Water Hazard Class (WGK 1 / AwSV), VOC-exempt verification, or FDA 21 CFR 178.3910 rolling-oil compliance declarations.
- 6. Packaging Format, Order Volume, and Documentation: Specify 170–180 kg drums, 850 kg IBC totes, or bulk isotank delivery, spot order quantity, annual forecast, and required TDS, 16-section GHS SDS, and batch COA documents.


SYNATIVE AL G 16 SUPPLY FROM ATAMAN KİMYA


Synative AL G 16—branched C16 Guerbet primary alcohol (2-Hexyldecan-1-ol / 2-Hexyldecanol, CAS No. 2425-77-6, EC No. 219-370-1, Molecular Formula C16H34O)—is supplied by Ataman Kimya for lubricant manufacturers, metalworking-fluid formulators, aluminum and copper rolling mills, synthetic ester and surfactant producers, agrochemical formulators, and specialty chemical plants.
Companies planning to source Synative AL G 16 from Ataman Kimya can share their target formulation viscosity, low-temperature performance targets, lubricant or surfactant system, and packaging preferences to confirm product availability, benchmark suitability, and commercial quotation details.
Sharing the following information in a quotation request facilitates rapid technical matching by the Ataman Kimya team:
- Target application (neat cutting/stamping/rolling oil, MQL spray lubricant, water-miscible MWF coupler, synthetic ester/phosphate ester synthesis, agrochemical solvent/adjuvant, or cosmetic emollient)
- Required specification parameters (Hydroxyl Value 225–235 mg KOH/g, Iodine Value <= 1.0, Cloud Point <= -30 °C, Pour Point -60 °C, and Viscosity 40–50 mPa·s at 20 °C)
- Estimated order quantity (spot drum/IBC shipment and annual consumption forecast) and preferred packaging (170–180 kg drums, 850 kg IBC totes, or bulk tanker)
- Delivery destination, preferred Incoterms, and required technical documentation (TDS, SDS, and batch COA)


FREQUENTLY ASKED QUESTIONS ABOUT SYNATIVE AL G 16


 What is Synative AL G 16 and what is its chemical structure?
Synative AL G 16 is a high-purity, 100% saturated, beta-branched C16 Guerbet primary alcohol chemically defined as 2-Hexyldecan-1-ol or 2-Hexyldecanol (CAS 2425-77-6, EC 219-370-1, molecular formula C16H34O, MW 242.44 g/mol). Synthesized via the catalytic Guerbet dimerization of linear C8 1-octanol, it features a ten-carbon main decanol chain with a six-carbon n-hexyl side-branch attached selectively at the C-2 position adjacent to the primary hydroxyl group (-CH2OH).

 Why is Synative AL G 16 a liquid down to -60 °C whereas linear Cetyl Alcohol (also C16H34O) is a solid wax melting at +49 °C?
Both Synative AL G 16 and Cetyl Alcohol (1-hexadecanol) have the exact same molecular formula (C16H34O) and molecular weight (242.44 g/mol). However, linear Cetyl Alcohol packs tightly into crystalline orthorhombic lattices that melt at +49 °C. In Synative AL G 16, the symmetrical C6 hexyl branch at the C-2 position creates a V-shaped steric wedge that prevents hydrocarbon chains from crystallizing—depressing the cloud point below -30 °C and the pour point to -60 °C (DIN ISO 3016).

 Why do metalworking-fluid formulators prefer Synative AL G 16 over unsaturated Oleyl Alcohol (C18:1)?
Unsaturated oleyl alcohol (CAS 143-28-2) remains liquid at room temperature only because it contains a carbon-carbon double bond (Iodine Value ~85 to 95 g I2/100 g), which oxidizes and polymerizes under machining heat and sump aeration to form sticky amber varnish on CNC machine slideways and rancid odors, while freezing at +5 to +13 °C. By contrast, Synative AL G 16 is 100% saturated (Iodine Value <= 0.5 to 1.0 g I2/100 g)—delivering permanent liquid fluidity down to -60 °C with ZERO oxidative gumming, ZERO varnish formation, and superior thermal stability.

 How does Synative AL G 16 function as a coupler and foam reducer in water-miscible metalworking fluids?
In semi-synthetic and soluble-oil MWF concentrates (at 1.5% to 6.0% w/w), the twin-tailed amphiphilic wedge of Synative AL G 16 inserts between anionic soaps/sulfonates and nonionic ethoxylates at the oil-water interface. This couples polar and non-polar components into crystal-clear concentrates, ensures spontaneous formation of fine microemulsions in hard water (> 500 ppm CaCO3), stays inside the oil droplets to lubricate the cutting tool tip, and disrupts air-water soap films to suppress persistent CNC coolant foam.

 Why is Synative AL G 16 ideal for aluminum cold-rolling oils and stamping fluids?
During cold rolling and stamping of aluminum sheet and foil, the polar primary hydroxyl group (-CH2OH) of Synative AL G 16 adsorbs onto the nascent aluminum oxide surface to provide high boundary film strength and prevent metal pick-up or galling. Then, when the rolled aluminum coil is annealed at 320 to 420 °C, saturated Synative AL G 16 (boiling point ~310 °C, Iodine Value <= 0.5) volatilizes 100% cleanly without thermal cracking or polymerization—eliminating brown 'annealing stains' on the finished aluminum!

 How is Synative AL G 16 used in Minimum Quantity Lubrication (MQL) spray systems?
With a dynamic viscosity of 40 to 50 mPa·s at 20 °C (~24 mm2/s at 40 °C), a high Cleveland Open-Cup flash point of >= 160 °C, a pour point of -60 °C, and zero human hazard labels, Synative AL G 16 (used neat or blended 20:80 to 50:50 with polyol esters like Synative ES TMP 05) atomizes cleanly into uniform micro-droplets in MQL spray nozzles without generating hazardous volatile mists or sticky machine residues.

 What chemical derivatives are manufactured from Synative AL G 16?
Because Synative AL G 16 carries a sterically accessible primary alcohol group (-CH2OH, Hydroxyl Value 225–235 mg KOH/g), it is a premier chemical intermediate for: (a) Branched C16 Guerbet mono-, di-, and triesters (such as di-2-hexyldecyl adipate, sebacate, and azelate) with pour points below -55 °C and Viscosity Index > 145 for synthetic aviation/automotive/wind-turbine lubricants; (b) Low-foam Guerbet alcohol ethoxylates and alkoxylates (Synative XA series); and (c) Oil-soluble Guerbet phosphate esters for ashless anti-wear and aluminum anti-stain additives.

 Why is Synative AL G 16 a superior alternative to Butyl Diglycol (BDG) in metalworking fluid concentrates?
Butyl Diglycol (DEGBE, CAS 112-34-5) is water-soluble (providing zero lubricity in the diluted oil phase), counts as a volatile organic compound (VOC, boiling point 230 °C), and faces EU REACH Annex XVII spray restrictions. Synative AL G 16 is VOC-exempt (boiling point > 305 °C), carries zero GHS hazard pictograms, and partitions into the emulsified oil droplets to boost cutting lubricity and foam control simultaneously.

 Is Synative AL G 16 classified as hazardous under EU CLP / UN GHS or regulated for transport?
No. Synative AL G 16 (CAS 2425-77-6, EC 219-370-1) is completely free from human health hazard and aquatic toxicity labels under EU CLP and UN GHS (no pictograms, no signal word, no H304 aspiration hazard because viscosity at 40 °C is ~24 mm2/s > 20.5 mm2/s), and is Not Regulated as Dangerous Goods under ADR, IMDG, or IATA transport codes.

 How can lubricant blenders, metalworking-fluid formulators, and industrial buyers source Synative AL G 16 and request COA, TDS, and SDS documents from Ataman Kimya?
Customers can procure Synative AL G 16 (2-Hexyldecanol / C16 Guerbet Alcohol, CAS 2425-77-6) in 170–180 kg drums, 850 kg IBC totes, or bulk stainless-steel tankers—complete with batch-specific Certificates of Analysis (COA), Technical Data Sheets (TDS), and GHS/CLP Safety Data Sheets (SDS)—directly from Ataman Kimya by calling +90 216 577 10 10 or emailing info@atamankimya.com.


SYNATIVE AL G 16 – TECHNICAL SUMMARY


Synative AL G 16—known in Turkish industrial commerce as Synative AL G 16, 2-Hekzildekanol, 2-Hekzil-1-dekanol, or Dallanmış C16 Guerbet Alkolü, and identified globally under CAS No. 2425-77-6 and EC / EINECS No. 219-370-1 (INCI: HEXYLDECANOL)—is a high-purity, 100% saturated, beta-branched C16 primary Guerbet alcohol with the molecular formula C16H34O (CH3(CH2)7CH[(CH2)5CH3]CH2OH) and a molecular weight of 242.44 g/mol. Synthesized via the catalytic Guerbet dimerization and complete hydrogenation of linear C8 1-octanol, this twin-tailed primary alcohol combines a polar hydroxymethyl headgroup (Hydroxyl Value 225 to 235 mg KOH/g) with a V-shaped C6/C8 aliphatic wedge that suppresses crystallization while eliminating olefinic double bonds (Iodine Value <= 1.0 g I2/100 g, Acid Value <= 0.5 mg KOH/g, and Saponification Value <= 1.0 mg KOH/g).

Supplied as a crystal-clear, colorless to slightly yellowish, virtually odorless liquid (density 0.8350 to 0.8400 g/cm3 at 20 °C, dynamic viscosity 40 to 50 mPa·s at 20 °C / ~24 mm2/s at 40 °C, refractive index 1.4400 to 1.4600, cloud point <= -30 °C, pour point -60 °C per DIN ISO 3016, boiling point 305 to 315 °C, and Cleveland Open-Cup flash point >= 160 °C), Synative AL G 16 serves as a benchmark multi-functional component across water-miscible metalworking fluids (where it acts simultaneously as an amphiphilic coupler, hard-water emulsion stabilizer, boundary lubricity agent, and non-silicone foam suppressor), neat cutting/drilling/stamping oils, mill-stain-free aluminum cold-rolling oils, and Minimum Quantity Lubrication (MQL) spray fluids. Beyond tribology, Synative AL G 16 is a premier chemical intermediate for low-pour-point synthetic Guerbet esters, low-foam Guerbet alkoxylates, and ashless phosphate esters, as well as a VOC-exempt, label-free biodegradable agrochemical solvent/adjuvant.

For technical specification verification, formulation coupling guidance, current warehouse stock availability, Technical Data Sheet (TDS), Safety Data Sheet (SDS), and batch Certificate of Analysis (COA) documentation, or to request a commercial quotation for Synative AL G 16 tailored to your lubricant, metalworking fluid, ester synthesis, or agrochemical production requirements, you can contact Ataman Kimya directly through the communication channels below. Our technical sales team will gladly assist you in matching the optimal Guerbet alcohol or synthetic ester solution to your manufacturing process.

Ataman Chemicals
Phone: +90 216 577 10 10
Email: info@atamankimya.com


 

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