SOKALAN CP 5 POWDER

At the macromolecular level, Sokalan CP 5 Powder consists of a linear carbon-carbon copolymer backbone of empirical formula (C4H2O4.C3H4O2)x.xNa and repeating unit [-CH2-CH(COONa)-]n-[-CH(COONa)-CH(COONa)-]m engineered to a weight-average molecular weight (Mw) of approximately 70,000 g/mol. The high stoichiometric density of mono-carboxylic sodium acrylate units combined with vicinal dicarboxylic sodium maleate units generates an exceptionally high linear anionic carboxylate charge density (~11.5 to 12.5 meq/g), providing a practical calcium-binding capacity of 280 to 350 mg CaCO3 per gram of anhydrous polymer at pH 11 alongside complete hydrolytic and oxidative stability across pH 3.5 to 14.0.

Formulators and chemical engineers systematically prefer Sokalan CP 5 Powder over 40% liquid polycarboxylate solutions, coarse granular polycarboxylates, legacy sodium tripolyphosphate (STPP), and low-molecular-weight homopolymeric sodium polyacrylate powders whenever maximum active shipping density, zero water introduction into dry powder blends, and instantaneous cold-water dissolution of fine hollow microspheres are required. Compared with 40% aqueous liquid grades, 1.00 kg of 92% active Sokalan CP 5 Powder replaces 2.30 kg of liquid polymer while eliminating 1.38 kg of water freight and preventing premature caking of moisture-sensitive sodium percarbonate or enzymes, and compared with homopolymeric sodium polyacrylates, it delivers 30% to 50% higher calcium sequestration, superior clay and iron-oxide anti-redeposition, and stronger crutcher slurry viscosity reduction.

CAS Number: 52255-49-9 / 68479-09-4 (2-Butenedioic acid (2Z)-, polymer with 2-propenoic acid, sodium salt; Maleic acid/acrylic acid copolymer, sodium salt; Parent Acid Copolymer CAS Number: 29132-58-9)
EC Number: 610-802-6 (Polymer Exempt under EU REACH Regulation EC 1907/2006; Monomer Precursors Acrylic Acid and Maleic Anhydride/Acid Fully Registered)
Molecular Formula: (C4H2O4.C3H4O2)x.xNa / Repeating Structural Unit: [-CH2-CH(COONa)-]n-[-CH(COONa)-CH(COONa)-]m
Molecular Weight: Approx. 70,000 g/mol (Weight-Average Molecular Weight Mw determined by Aqueous Gel Permeation Chromatography GPC / EN ISO 13885)
INCI Name: SODIUM MA/AA COPOLYMER (and SODIUM ACRYLATE/MALEATE COPOLYMER)
E Number: Not Applicable (Industrial Detergent Co-Builder Powder, Anti-Incrustation Polymer, Textile Auxiliary, Mineral Dispersant, and Scale Inhibitor; Not a Direct Food Additive)
Melting Point: > 250 °C thermal decomposition onset (Anhydrous spray-dried polymer exhibits a glass transition temperature Tg of approx. 140 °C to 160 °C depending on residual moisture; Sokalan CP 5 Powder does not melt into a neat liquid prior to thermal decarboxylation above 240 °C to 250 °C)
Boiling Point: Not Applicable (Non-volatile ionic polymeric solid; decomposes thermally above 250 °C prior to boiling at 101.3 kPa; a 10% to 20% w/w reconstituted aqueous solution boils at approx. 100.5 °C to 102.0 °C)
Viscosity: Not Applicable as a free-flowing dry spray-dried powder; when reconstituted in water at 25 °C, dynamic viscosity is approx. 5 to 12 mPa.s (cP) at 10.0% w/w, 15 to 40 mPa.s at 20.0% w/w, and 450 to 700 mPa.s at 40.0% w/w (Brookfield RV Viscometer at 20 rpm, ISO 2555)
Density: Apparent loose bulk pour density of 0.45 to 0.65 g/cm3 (450 to 650 g/L or kg/m3, typically ~500 to 580 g/L; ISO 697 / DIN 53912) and tapped bulk density of 0.55 to 0.75 g/cm3 (550 to 750 g/L); true skeletal polymer density of approx. 1.50 to 1.62 g/cm3 at 20 °C

Most Frequently Encountered Synonyms:
Sokalan CP 5 Powder
SOKALAN CP 5 POWDER
Sokalan CP5 Powder
Sokalan CP-5 Powder
Sokalan CP 5 P
Powdered Sokalan CP 5
Anionic Acrylic-Maleic Polycarboxylate Dispersant Powder
Detergent Grade Maleic-Acrylic Copolymer Powder
Anti-Redeposition Polymer Powder CP 5
Sokalan CP 5 Toz
Toz Sokalan CP 5
Akrilik Asit-Maleik Asit Kopolimeri Sodyum Tuzu Tozu
Maleik Asit-Akrilik Asit Kopolimeri Sodyum Tuzu Toz
Toz Polikarboksilat Ko-Builder CP 5
Toz Sodyum Akrilat-Maleat Kopolimeri
CAS 52255-49-9
CAS 68479-09-4
EC 610-802-6

PRODUCT OVERVIEW, CHEMICAL IDENTITY AND SPRAY-DRIED POWDER MORPHOLOGY

Sokalan CP 5 Powder is the high-concentration, free-flowing spray-dried fine powder grade of the industry-benchmark acrylic acid–maleic acid copolymer sodium salt (CAS Number 52255-49-9 / 68479-09-4; EC Number 610-802-6), supplied by Ataman Kimya for dry-blended household and institutional laundry detergents, powdered cleaning concentrates, dry-mix textile and water-treatment auxiliaries, ceramic slips, agrochemical wettable powders, and gypsum or cementitious construction mortars. Referred to across international formulation literature and raw-material specifications as Powdered Acrylic Acid-Maleic Acid Copolymer Sodium Salt, Poly(acrylic acid-co-maleic acid) Sodium Salt Powder, Sodium Salt of Maleic Acid-Acrylic Acid Copolymer Powder, MA/AA Copolymer Sodium Salt Powder, and in Turkish chemical commerce as Sokalan CP 5 Toz or Akrilik Asit-Maleik Asit Kopolimeri Sodyum Tuzu Tozu, this versatile polymeric raw material provides approximately 92.0% w/w active polycarboxylate copolymer (with <= 8.0% w/w residual hydration moisture) in a hollow-to-spherical spray-dried micro-particle morphology.
While the underlying chemical macromolecule of Sokalan CP 5 Powder is identical to that of Sokalan CP 5 Liquid (40.0% w/w aqueous solution) and Sokalan CP 5 Granules (92.0% w/w compacted dust-free granules)—all three grades featuring the exact same weight-average molecular weight (Mw) of approximately 70,000 g/mol and the same high-charge-density sequence of sodium acrylate and vicinal sodium maleate repeating units—the fine spray-dried powder architecture of Sokalan CP 5 Powder (mean particle diameter d50 of 80 to 180 microns, apparent loose bulk density of 450 to 650 g/L) delivers four decisive processing and formulation advantages:

Ultra-Rapid Cold-Water Dissolution via Hollow Spray-Dried Microspheres:
During tower spray-drying of the neutralized 70,000 g/mol copolymer solution, rapid flash evaporation of water creates fine spherical particles (80 to 180 microns) with high specific surface area and thin, porous walls. When Sokalan CP 5 Powder is added to cold or warm water (or when a dry-mix powder detergent, textile auxiliary, or cementitious grout is gauged with water), water penetrates the thin microsphere walls instantaneously, dissolving > 98% of the Poly(acrylic acid-co-maleic acid) Sodium Salt Powder within 15 to 45 seconds under normal agitation—considerably faster than denser, roll-compacted granules.

Seamless Homogeneity in Fine Powder Mixes and Ribbon Blenders:
Many industrial products—including conventional low-to-medium density laundry powders, powdered institutional hard-surface and dairy cleaners, dry-bagged textile scouring/bleaching boosters, agrochemical Wettable Powders (WP), ceramic dry body mixes, and gypsum/cement dry-mix mortars—consist of fine powders (50 to 200 microns) such as light soda ash, sodium bicarbonate, sodium tripolyphosphate replacements, kaolin clay, silica, gypsum hemihydrate, or Portland cement. In these fine powder matrices, coarse 600-micron granules would segregate, whereas the 80 to 180 micron particle size and 450 to 650 g/L bulk density of Sokalan CP 5 Powder blend homogeneously without stratification or sifting.

Maximum Active Payload and Elimination of Water Freight Costs:
Compared with commercial 40.0% w/w Sokalan CP 5 Liquid (which contains 60.0% w/w water), Sokalan CP 5 Powder contains 92.0% w/w active Sodium Salt of Maleic Acid-Acrylic Acid Copolymer—delivering 2.30 times more active polymer per kilogram of shipped product. For detergent plants, water-treatment blenders, and export buyers, procuring Sokalan CP 5 Powder reduces road and maritime freight weight by 56.5%, eliminates drum and IBC disposal costs, and completely avoids winter freezing issues in unheated warehouses.

Dry-State Compatibility with Moisture-Sensitive Bleaches, Alkalis, and Enzymes:
Because Sokalan CP 5 Powder is an anhydrous solid with <= 8.0% w/w tightly bound hydration water (equilibrium water activity aw < 0.35) and a saturated carbon-carbon backbone devoid of hydrolyzable ester or amide groups, it can be dry-blended directly with moisture-sensitive oxygen bleaches (sodium percarbonate, sodium perborate, TAED), active chlorine sources (sodium dichloroisocyanurate NaDCC), strong alkalis (caustic soda pearls, anhydrous sodium metasilicate, soda ash), and proteolytic/amylolytic enzymes without triggering premature decomposition or caking.

PHYSICAL AND CHEMICAL PROPERTIES AND QUANTITATIVE SPECIFICATIONS

To support precision formulation design, dry-blending equipment calibration, and quality control verification, the quantitative physical, granulometric, and chemical specifications of Sokalan CP 5 Powder (Powdered Acrylic Acid-Maleic Acid Copolymer Sodium Salt, CAS 52255-49-9 / 68479-09-4) supplied by Ataman Kimya are detailed below along with their standard international test methods:

Chemical Identity and Macromolecular Constants:
- Chemical Composition: Sodium salt of a copolymer of maleic acid and acrylic acid / Poly(acrylic acid-co-maleic acid) Sodium Salt in spray-dried fine powder form (CAS 52255-49-9 / 68479-09-4; EC 610-802-6; Parent Acid Copolymer CAS 29132-58-9).
- Repeating Structural Unit Formula: (C4H2O4.C3H4O2)x.xNa or [-CH2-CH(COONa)-]n-[-CH(COONa)-CH(COONa)-]m.
- Weight-Average Molecular Weight (Mw, EN ISO 13885 / Aqueous GPC against defined polyacrylate standards): Approximately 70,000 g/mol (typical production window 60,000 to 80,000 g/mol; Number-Average Molecular Weight Mn ~ 18,000 to 28,000 g/mol; Polydispersity Index Mw/Mn ~ 2.5 to 3.8).
- Total Anionic Carboxylate Capacity (100% Anhydrous Polymer Basis): Approximately 11.5 to 12.5 milliequivalents of -COONa per gram of dry copolymer (theoretical elemental sodium content ~21.0% to 24.0% w/w Na).

Active Solids, Moisture Content, and Aqueous Solution pH:
- Active Solid Content / Dry Matter Content (ISO 3251, gravimetric oven drying at 120 °C to 140 °C for 2 hours): >= 91.0% w/w (typical batch specification 92.0% +/- 2.0% w/w, range 90.0% to 94.0% w/w).
- Water Content / Volatile Moisture Content (DIN EN 13267 / Karl Fischer Titration or Halogen Moisture Analyzer): <= 8.0% w/w (typical production values 5.5% to 8.0% w/w).
- pH Value in Aqueous Solution (DIN 19268 / ISO 976 at 20 °C to 25 °C): 7.5 to 9.0 (typically 8.0 to 8.6 measured as a 10.0% w/w solution of Sokalan CP 5 Powder in carbon-dioxide-free distilled water, and 7.8 to 8.8 as a 1.0% w/w solution).

Powder Granulometry, Bulk Density, and Flowability Constants of Sokalan CP 5 Powder:
- Physical State and Visual Appearance: White to slightly yellowish-white, free-flowing fine spray-dried powder with a faint, clean characteristic odor.
- Apparent Loose Bulk Pour Density (ISO 697 / DIN 53912): 450 to 650 g/L (0.45 to 0.65 g/cm3 or 450 to 650 kg/m3; typical production value 500 to 580 g/L, compared with 600 to 780 g/L for compacted Sokalan CP 5 Granules).
- Tapped Bulk Density (ISO 787-11, 1,250 mechanical taps): 550 to 750 g/L (0.55 to 0.75 g/cm3).
- True Skeletal Polymer Density (Helium Pycnometry at 20 °C): Approximately 1.50 to 1.62 g/cm3.
- Hausner Ratio (Tapped Density / Loose Bulk Density): 1.15 to 1.25 (Good powder flowability).
- Carr's Compressibility Index: 13.0% to 20.0%.
- Static Angle of Repose (ISO 4324): Approximately 34 to 38 degrees.
- Particle Size Distribution by Sieve Analysis and Laser Diffraction (ISO 3310-1 / ISO 13320):
  * Mean Particle Diameter (d50 / Median Powder Size): 80 to 180 microns (typical d50 ~ 100 to 150 microns).
  * Sieve Residue > 400 microns (40 US Mesh): <= 5.0% w/w (typically < 1.5% w/w).
  * Sieve Residue > 800 microns (20 US Mesh): <= 0.5% w/w (virtually 100% passing).
  * Powder Fraction < 250 microns (60 US Mesh): >= 80.0% to 92.0% w/w.

Optical Color, Solubility, and Reconstituted Solution Rheology:
- Color Index in Solution and Solid State (DIN EN 1557 / ISO 6271): A 10.0% w/w aqueous solution of Sokalan CP 5 Powder exhibits an Iodine Color Number of <= 2 mg I2/100 mL and an APHA / Hazen Platinum-Cobalt Color of <= 50 (clear and colorless to pale straw-yellow); dry powder Hunter L* whiteness index is >= 85 to 92.
- Dissolution Rate in Water (at 20 °C and 40 °C under 300 rpm stirring, 10 g/L): >= 98% optical dissolution within 20 to 45 seconds at 20 °C and within 10 to 20 seconds at 40 °C when sifted into the agitator vortex.
- Dynamic Viscosity of Reconstituted Aqueous Solutions (Brookfield RV Viscometer, 20 rpm at 23 °C to 25 °C, ISO 2555):
  * At 5.0% w/w in water: ~2.5 to 5.0 mPa.s (cP).
  * At 10.0% w/w in water: ~6.0 to 14.0 mPa.s (cP).
  * At 20.0% w/w in water: ~15.0 to 40.0 mPa.s (cP).
  * At 40.0% w/w in water (reconstituting commercial Sokalan CP 5 Liquid): ~400 to 800 mPa.s (cP) with a liquid density of 1.28 to 1.32 g/cm3 at 20 °C.

Quantitative Chelation, Dispersion, Thermal, and Purity Benchmarks:
- Calcium Binding Capacity (Alkaline Nephelometric / Hampshire CaCO3 Titration at pH 11.0 and 20 °C): 280 to 350 mg CaCO3 per gram of 100% anhydrous polymer (corresponding to ~260 to 322 mg CaCO3 per gram of commercial 92% Sokalan CP 5 Powder as supplied, or ~460 to 500 mg CaO/g active polymer).
- Calcium Carbonate Dispersion Capacity (pH 10.5, 25 °C): >= 180 to 240 mg CaCO3 dispersed per gram of Sokalan CP 5 Powder.
- Clay / Manganese Dioxide Anti-Redeposition Efficiency: Reduces particulate soil redeposition on cotton fabric in 250 ppm CaCO3 hard water from > 18% reflectance loss down to < 2.5% reflectance loss at 150 ppm polymer concentration.
- Residual Unreacted Monomer Content (HPLC): Free residual acrylic acid < 500 ppm (typically < 100 to 200 ppm); free residual maleic acid < 1,000 ppm (typically < 300 ppm); Inorganic sulfate/chloride salts <= 1.5% w/w; Heavy metals (as Pb) <= 10 ppm; Iron (Fe) <= 20 ppm.
- Thermal Glass Transition and Decomposition Profile (DSC / TGA): Glass transition temperature (Tg) of 140 °C to 160 °C; bound moisture evaporation between 105 °C and 150 °C; thermal decomposition onset above 240 °C to 250 °C (no liquid melting point prior to decomposition).

PHYSICOCHEMICAL MECHANISMS OF ACTION IN DETERGENCY AND SLURRY DISPERSION

Whether dry-blended into a powdered detergent or dissolved into an industrial process bath, the 70,000 g/mol Poly(acrylic acid-co-maleic acid) Sodium Salt chains of Sokalan CP 5 Powder execute five synergistic physicochemical mechanisms:

High-Capacity Multidentate Chelation of Calcium and Magnesium Hardness Ions:
In hard water containing dissolved Ca2+ and Mg2+ ions, divalent cations precipitate anionic surfactants (such as LAS and fatty acid soaps) as insoluble lime soaps and bind negatively charged dirt particles onto negatively charged cellulosic cotton fibers via electrostatic calcium bridges (Fiber-O- ... Ca2+ ... -O-Soil). Because Sokalan CP 5 Powder combines mono-carboxylic sodium acrylate units with vicinal dicarboxylic sodium maleate units along a 70,000 g/mol carbon backbone, adjacent carboxylate oxygens coordinate around Ca2+ and Mg2+ ions to form stable 5-, 6-, and 7-membered chelate rings. At alkaline wash pH (pH 9.5 to 11.2), 1.0 gram of commercial 92% Sokalan CP 5 Powder sequesters approximately 260 to 322 mg of CaCO3 (280 to 350 mg CaCO3 per gram of 100% active polymer), breaking calcium-soil-fiber bridges, preventing lime-soap scum, and freeing anionic surfactants to emulsify oily stains.

Catalytic Carrier Effect (Ion-Exchange Shuttle) with Aluminosilicate Zeolite A:
In phosphate-free laundry powders built with insoluble Zeolite A (Zeolite 4A) and sodium carbonate (soda ash), the diffusion-controlled ion exchange of Ca2+ into the microscopic pores of Zeolite A is too slow at low-to-warm wash temperatures (20 °C to 40 °C) to prevent dissolved Ca2+ from reacting with carbonate ions (CO3^2-) to precipitate insoluble calcite (CaCO3) scale. Dissolved chains of MA/AA Copolymer Sodium Salt Powder act as a high-speed molecular shuttle: they rapidly chelate dissolved Ca2+ in bulk water and at fabric surfaces, diffuse to the surface of Zeolite A crystals, and transfer the Ca2+ ion into the zeolite crystal lattice (which has a slightly higher thermodynamic affinity for Ca2+ than the reversible polymer complex) in exchange for Na+ ions. The regenerated Sodium Salt of Maleic Acid-Acrylic Acid Copolymer chain immediately returns to the wash water to repeat the catalytic shuttle cycle, accelerating Zeolite A water softening by 300% to 500%.

Sub-Stoichiometric Threshold Crystal Distortion (Anti-Incrustation):
Even when water hardness exceeds stoichiometric builder capacity—or during the dilution shock of the rinse cycle—Sokalan CP 5 Powder prevents the growth of adherent crystalline scale at sub-stoichiometric threshold concentrations (2 to 30 mg/L). The polyanionic chains adsorb selectively onto the positively charged active growth steps and kinks of embryonic sub-micron calcium carbonate (calcite/aragonite), calcium sulfate (gypsum), and calcium silicate crystal nuclei. This adsorption blocks further lattice growth, delays precipitation induction times, and induces severe crystal lattice distortion—transforming sharp, interlocking rhombohedral calcite crystals into rounded, amorphous, easily friable micro-particles that cannot adhere to textile fibers, washing machine heating elements, or heat-exchanger tubes, and instead rinse away cleanly.

Electrosteric Stabilization and Anti-Redeposition of Particulate Soils and Minerals:
Once particulate soils—such as kaolinite clay, montmorillonite, iron oxide rust, carbon black, diesel soot, and street dust—are detached from fabrics or dispersed in mineral slurries, they tend to re-agglomerate and redeposit onto surfaces ("wet graying" of fabrics). The 70,000 g/mol chains of Powdered Acrylic Acid-Maleic Acid Copolymer Sodium Salt anchor onto particle surfaces via multipoint carboxylate adsorption while extending hydrated, negatively charged loops and tails into the surrounding aqueous phase. This dual electrosteric barrier shifts the particle zeta potential below -40 to -55 mV and creates a steric hydration layer that prevents Van der Waals flocculation even at high electrolyte ionic strengths.

Detergent Crutcher Slurry Deflocculation and Spray-Dried Bead Strengthening:
When Sokalan CP 5 Powder is added to an aqueous detergent crutcher slurry (or when reconstituted in high-solids mineral slurries), it deflocculates suspended Zeolite A, carbonate, sulfate, and silicate crystals, slashing slurry viscosity by 25% to 50%. This allows spray-tower operators to raise crutcher slurry dry solids from ~55% up to 65%–70% w/w at constant pump pressure, saving 15% to 30% in spray-tower thermal energy while binding the finished spray-dried detergent beads into tough, elastic, non-dusting hollow spheres.

INDUSTRIAL APPLICATIONS AND FORMULATION ENGINEERING

Thanks to its 92.0% active solids content, rapid cold-water solubility, 80 to 180 micron fine powder granulometry, and 70,000 g/mol acrylate-maleate macromolecular structure, Sokalan CP 5 Powder supplied by Ataman Kimya is utilized across eight major industrial sectors:

Conventional, Ribbon-Blended, and Compact Household Laundry Detergent Powders:
In phosphate-free heavy-duty laundry powders, semi-compact powders, and ribbon-blended economical detergent powders (bulk density 400 to 650 g/L), Sokalan CP 5 Powder is dosed at 2.2% to 6.5% w/w (delivering 2.0% to 6.0% w/w active polymer) alongside 15% to 30% Zeolite A, 15% to 25% light or medium sodium carbonate, 2% to 5% sodium disilicate, and 10% to 20% anionic/non-ionic surfactants. Over 25 consecutive wash cycles in hard water (250 to 400 ppm CaCO3), incorporating 3.5% w/w Sokalan CP 5 Powder reduces cumulative inorganic fabric ash incrustation on cotton terry towels from > 6.0% w/w down to < 0.6% w/w, prevents fabric harshness and yellowing, and increases particulate clay and soot stain removal by 8 to 15 reflectance units.

Institutional & Industrial (I&I) Laundry Boosters, Warewashing Powders, and Alkaline Cleaners:
In commercial hotel and hospital laundry alkali boosters, powdered bottle-washing compounds, dairy/brewery CIP cleaning packets, and heavy-duty alkaline floor and metal degreasers containing caustic soda pearls (NaOH), anhydrous sodium metasilicate, soda ash, and active chlorine (NaDCC) or sodium percarbonate, Sokalan CP 5 Powder is dry-blended at 2.0% to 10.0% w/w. Because the C-C polymer backbone is 100% stable against boiling caustic soda (pH 14) and hypochlorite/peroxide bleaches, Sokalan CP 5 Powder chelates water hardness, inhibits scale crusting on steam coils and spray nozzles, and disperses protein-mineral and grease soils without foaming.

Dry-Mix Textile Pretreatment, Kier Boiling, Peroxide Bleaching, and Reactive Dye Soaping-Off Powders:
In the manufacture of powdered textile auxiliary concentrates for cotton, linen, and viscose wet processing, Sokalan CP 5 Powder is dry-blended at 20% to 60% w/w with sodium carbonate, sodium gluconate, sodium metasilicate, and spray-dried anionic wetting agents (such as sodium alkyl naphthalene sulfonate powder). Applied in the dyehouse at 0.4 to 1.8 g/L (equivalent to 1.0 to 4.0 g/L of 40% liquid), Poly(acrylic acid-co-maleic acid) Sodium Salt Powder chelates Ca2+ and Mg2+ ions extracted from raw cotton pectins during alkaline scouring, prevents sodium silicate scale deposition on steamer rollers during hydrogen peroxide bleaching, and disperses cotton seed husks and waxes. In post-dyeing reactive and vat wash-off baths (0.5 to 1.5 g/L), Sokalan CP 5 Powder disperses hydrolyzed unfixed dye to prevent back-staining onto white grounds without stripping copper, chromium, or iron atoms from metal-complex dyestuffs (unlike EDTA or DTPA, which demetallize dyes and cause shade shifts).

Powdered Industrial Water Treatment, Cooling Tower, Boiler, and Desalination Scale Inhibitors:
For export water-treatment service companies and solid-chemical blenders, Sokalan CP 5 Powder serves as a concentrated 92% active solid raw material for formulating dry-bagged cooling-tower scale inhibitors, boiler sludge conditioners, multi-stage flash (MSF) and reverse-osmosis (RO) antiscalant powders, and oilfield scale-inhibitor packages. Dosed into recirculating water at 2.0 to 25.0 mg/L (ppm) active polymer, MA/AA Copolymer Sodium Salt Powder inhibits calcium carbonate (up to LSI +2.5), calcium sulfate, barium sulfate, and strontium sulfate scale while dispersing colloidal silt and iron oxide corrosion products. In addition, water-treatment blenders frequently dissolve 435 kg of Sokalan CP 5 Powder in 565 kg of deionized water locally to manufacture 1,000 kg of 40.0% w/w liquid polycarboxylate solution on site, saving 56.5% on international shipping costs.

Ceramics, Kaolin, Calcium Carbonate, Gypsum Wallboard, and Construction Dry-Mix Mortars:
In dry-bagged ceramic body slips, refractory castables, gypsum wallboard stuccos, self-leveling floor screeds, and cementitious tile adhesives, Sokalan CP 5 Powder is dry-blended at 0.05% to 0.50% w/w on dry mineral weight. Because its fine 80 to 180 micron powder particles match the granulometry of cement, gypsum hemihydrate, kaolin, and ground calcium carbonate (GCC), Sokalan CP 5 Powder distributes uniformly throughout the dry mortar bag and dissolves within seconds when gauging water is added—adsorbing onto mineral crystal edges to deflocculate the slurry, reduce water demand by 10% to 20%, and lower slurry viscosity below 400 mPa.s at 70%–75% solids.

Agrochemical Wettable Powders (WP) and Water-Dispersible Granules (WDG/WG):
In agricultural crop-protection formulations, Sokalan CP 5 Powder is incorporated at 1.5% to 5.0% w/w into Wettable Powders (WP) and extruded or pan-granulated Water-Dispersible Granules (WDG/WG). With a glass transition temperature Tg > 140 °C and thermal decomposition > 250 °C, Sokalan CP 5 Powder co-mills cleanly in air-jet micronizers without smearing, sequesters hard-water Ca2+ and Mg2+ ions in field spray tanks (up to 500–1,000 ppm CaCO3), and electrosterically stabilizes micronized fungicide, herbicide, and insecticide particles against flocculation.

Waterborne Paints, Coatings, Plasters, and Pigment Dispersions:
In powdered cementitious facade paints, dry-mix textured plasters, and aqueous TiO2 / CaCO3 / iron-oxide pigment slurries, adding 0.15% to 0.50% w/w of Sokalan CP 5 Powder (on pigment weight) prevents pigment flocculation, maximizes hiding power and tinting strength, and prevents hard settling during storage.

Practical Guide Formulation Frameworks Featuring Sokalan CP 5 Powder:
- Guide Formulation 1 (Ribbon-Blended Phosphate-Free Heavy-Duty Laundry Detergent Powder, Bulk Density ~520 g/L): Linear Alkylbenzene Sulfonate Sodium Salt Powder (LAS 85% Powder) 14.0% w/w, Non-Ionic Alcohol Ethoxylate C12-15 EO7 (sprayed onto Zeolite/Carbonate carrier) 3.0% w/w, Detergent-Grade Aluminosilicate Zeolite 4A Powder 22.0% w/w, Sokalan CP 5 Powder 4.0% w/w (delivering 3.68% w/w active 70,000 g/mol Acrylic Acid-Maleic Acid Copolymer Sodium Salt for Zeolite A calcium shuttling, anti-incrustation, and clay anti-redeposition), Light/Medium Sodium Carbonate (Soda Ash) 20.0% w/w, Sodium Disilicate Powder 4.0% w/w, Sodium Carboxymethyl Cellulose (CMC) Powder 1.2% w/w, Coated Sodium Percarbonate 10.0% w/w, TAED 2.5% w/w, Protease + Amylase Enzyme Granules 1.2% w/w, Optical Brightener CBS-X 0.15% w/w, and Anhydrous Sodium Sulfate Powder balance to 100.0% w/w.

- Guide Formulation 2 (Dry-Mix Textile Kier-Boiling, Peroxide Bleaching & Reactive Dye Washing-Off Powder Concentrate): Sokalan CP 5 Powder 35.0% w/w (delivering 32.2% w/w active Poly(acrylic acid-co-maleic acid) Sodium Salt for Ca2+/Mg2+ sequestration, silicate scale prevention, and hydrolyzed dye dispersion without demetallizing metal-complex dyes), Anhydrous Sodium Gluconate Powder 15.0% w/w (for high-alkali Fe3+ chelation), Sodium Metasilicate Anhydrous Powder 20.0% w/w, Sodium Alkyl Naphthalene Sulfonate Wetting Powder 10.0% w/w, and Light Sodium Carbonate balance to 100.0% w/w (dosed at 0.8 to 2.0 g/L in textile scouring, bleaching, and soaping-off baths).
- Guide Formulation 3 (Local Reconstitution of 40.0% w/w Liquid Polycarboxylate Solution from Sokalan CP 5 Powder): Deionized or Softened Water 56.50% w/w (565.0 kg per 1,000 kg batch, warmed to 25 °C–35 °C) and Sokalan CP 5 Powder (92.0% active solids) 43.50% w/w (435.0 kg per 1,000 kg batch, sifted steadily into the agitator vortex over 20–30 minutes and mixed for 30 minutes to yield a crystal-clear 40.0% w/w aqueous solution with density ~1.30 g/cm3, pH 8.0–8.5, and Brookfield viscosity ~500 mPa.s at 23 °C).

MANUFACTURING PROCESS, SPRAY-DRYING ENGINEERING AND QUALITY CONTROL

The industrial manufacture of Sokalan CP 5 Powder integrates controlled semi-batch free-radical aqueous copolymerization with precision co-current spray-drying tower atomization to produce hollow, fast-dissolving microspheres of 70,000 g/mol Acrylic Acid-Maleic Acid Copolymer Sodium Salt:

Step 1 - Monomer Pre-Neutralization and Semi-Batch Free-Radical Copolymerization:
High-purity maleic anhydride (or maleic acid) is charged into deionized water inside a nitrogen-purged, jacketed stainless-steel reactor and partially pre-neutralized with iron-free 50% aqueous sodium hydroxide (NaOH) to form monosodium maleate, optimizing the copolymerization reactivity ratio between the 1,2-disubstituted maleate bond and acrylic acid. At 85 °C to 105 °C under reflux, glacial acrylic acid (2-propenoic acid), an aqueous free-radical initiator system (hydrogen peroxide / sodium persulfate), and a water-soluble chain-transfer regulator are metered continuously in parallel over 3 to 6 hours. This semi-batch polymerization kinetics forces uniform statistical incorporation of vicinal maleate dicarboxylate units alongside acrylate units, locking in the target weight-average molecular weight of Mw ~ 70,000 g/mol.

Step 2 - Post-Polymerization Monomer Chasing, Bleaching, and Complete Sodium Neutralization:
After monomer addition is completed, a secondary initiator "chaser" and hydrogen peroxide polishing treatment at 90 °C to 100 °C drive monomer conversion past 99.9%, reducing residual free acrylic acid below 100 to 200 ppm and residual maleic acid below 300 ppm while bleaching the polymer liquor to an APHA color <= 50 / Iodine color <= 2. The copolymer solution is then cooled and fully neutralized to pH 8.0–8.5 with 50% aqueous sodium hydroxide, producing an intermediate ~40.0% w/w aqueous solution of Poly(acrylic acid-co-maleic acid) Sodium Salt.

Step 3 - Co-Current Spray-Drying Tower Atomization and Fluidized-Bed Cooling:
The clarified, preheated 40% aqueous copolymer feed (at 60 °C to 75 °C) is pumped at high pressure (4.0 to 10.0 MPa) through tungsten-carbide swirl nozzles—or fed onto a high-speed centrifugal rotary atomizer disk spinning at 10,000 to 15,000 rpm—at the top of a cylindrical-conical co-current spray-drying tower. Filtered dry hot air enters the tower crown at an inlet temperature of 185 °C to 235 °C. Within 1 to 3 seconds of droplet contact, rapid surface water evaporation forms a thin, semi-permeable polymeric shell around each atomized droplet; as internal water flashes into steam, the droplet expands into a hollow, thin-walled microsphere of 80 to 180 micron diameter before solidifying as the exhaust air exits the tower base at 88 °C to 105 °C. The dried powder is separated from the exhaust air in high-efficiency cyclones and baghouse filters, cooled immediately below 32 °C in a dehumidified fluidized-bed cooler (stabilizing active solids at ~92.0% w/w, residual hydration moisture at <= 8.0% w/w, and apparent loose bulk density at 450 to 650 g/L), screened through a 400-micron safety sifter, and packed into moisture-barrier polyethylene-lined bags.

Step 4 - Industrial Dissolution & Dry-Blending Process Guidelines for Plant Engineers:
- Rapid Lump-Free Aqueous Dissolution Protocol: When dissolving Sokalan CP 5 Powder in plant mixing tanks to prepare stock solutions (e.g., 10% to 40% w/w), never dump an entire bag of fine powder in a single heap onto stagnant water, as the outer powder particles will hydrate into a tacky surface skin around dry powder cores ("fisheyes"). Instead, engage the mechanical impeller to create a strong surface vortex, and sift or educt Sokalan CP 5 Powder steadily into the vortex shoulder at 20 °C to 45 °C; complete optical dissolution occurs in under 60 seconds.
- Dry-Blending Sequencing: In ribbon blenders, paddle mixers, or V-blenders, pre-blend Sokalan CP 5 Powder with light-to-medium density inorganic carriers (such as soda ash, Zeolite 4A powder, or sodium sulfate) for 60 to 120 seconds under local exhaust ventilation to achieve a homogeneous coefficient of variation (CV < 3%).

Step 5 - Analytical Quality Control Verification at Ataman Kimya:
Each lot of Sokalan CP 5 Powder supplied by Ataman Kimya is analytically verified prior to Certificate of Analysis (COA) issuance:
- Solids & Moisture Content: ISO 3251 oven drying (>= 91.0%, nominal 92.0% w/w) and DIN EN 13267 Karl Fischer moisture (<= 8.0% w/w).
- Molecular Weight Verification: EN ISO 13885 aqueous GPC confirming Mw ~ 70,000 g/mol.
- Powder Bulk Density & Sieve Granulometry: ISO 697 apparent loose bulk density (450 to 650 g/L) and ISO 3310-1 sieve analysis confirming d50 = 80 to 180 microns and < 5.0% retained on 400 microns.
- Functional Calcium Sequestration, pH, and Color: Alkaline calcium-binding titration (280 to 350 mg CaCO3/g active polymer), 10% aqueous solution pH (7.5 to 9.0), and APHA color (<= 50).

TECHNICAL COMPARISON OF SOKALAN CP 5 POWDER WITH ALTERNATIVE GRADES AND BUILDERS

Evaluating how Sokalan CP 5 Powder compares against alternative physical forms of Sokalan CP 5 and competing chemical builders enables R&D chemists and procurement managers to optimize both formulation performance and landed raw-material cost:

 Sokalan CP 5 Powder (92% Fine Spray-Dried Powder) vs. Sokalan CP 5 Granules (92% Compacted Granular):
Both solid grades share the exact same chemical composition (Sodium Salt of Maleic Acid-Acrylic Acid Copolymer, CAS 52255-49-9 / 68479-09-4), the same molecular weight (Mw ~ 70,000 g/mol), and the same 92.0% w/w active polymer assay—meaning they substitute 1.00 : 1.00 by weight in any formula. However, they are engineered for different solid-processing equipment: Sokalan CP 5 Powder consists of fine hollow spray-dried microspheres (d50 = 80 to 180 microns, bulk density 450 to 650 g/L) that dissolve in seconds in cold water and blend homogeneously with fine powders (such as light soda ash, Zeolite A powder, kaolin clay, agrochemical WP carriers, gypsum, and Portland cement). Conversely, Sokalan CP 5 Granules consists of larger, denser compacted granules (d50 = 450 to 750 microns, bulk density 600 to 780 g/L) designed specifically for high-speed rotary tableting of ADW and laundry tablets and post-tower blending into high-density compact detergents where zero dust and non-segregation with coarse percarbonate/soda ash granules are required.

 Sokalan CP 5 Powder (92% Solid) vs. Sokalan CP 5 Liquid (40% Aqueous Solution):
Sokalan CP 5 Liquid contains 40.0% w/w active copolymer and 60.0% w/w water, whereas Sokalan CP 5 Powder contains 92.0% w/w active copolymer and <= 8.0% w/w moisture. Therefore, 1.000 kg of Sokalan CP 5 Powder delivers the exact same active polymer mass (920 g) as 2.300 kg of Sokalan CP 5 Liquid (conversely, multiply Sokalan CP 5 Liquid weight by 0.435 to obtain the equivalent weight of Sokalan CP 5 Powder). In dry-blended detergent powders, agrochemical WPs, and dry-mix mortars, Sokalan CP 5 Liquid cannot be used above 1%–2% because its 60% water content causes severe caking, lumping, and percarbonate decomposition. Even in liquid formulation plants located far from polymer production hubs, importing 92% Sokalan CP 5 Powder and dissolving it locally in water cuts international freight weight by 56.5% and eliminates winter drum-freezing risks.

 Sokalan CP 5 Powder vs. Spray-Dried Homopolymeric Sodium Polyacrylate Powder (PA, Mw 4,500 g/mol):
Homopolymeric sodium polyacrylate powders (Mw 4,000 to 5,000 g/mol) contain only one carboxylate group per C3 monomer unit and have short polymer chains, limiting their stoichiometric calcium-binding capacity to ~200 to 230 mg CaCO3/g and providing weak steric stabilization of coarse clay and soot particles. Because Sokalan CP 5 Powder incorporates vicinal dicarboxylic sodium maleate units alongside sodium acrylate units across a 70,000 g/mol chain, it delivers 30% to 50% higher calcium-binding capacity (280 to 350 mg CaCO3/g active polymer), far stronger clay and iron-oxide anti-redeposition on cotton fabrics, superior Zeolite A calcium shuttle kinetics, and higher spray-dried detergent bead strength.

 Sokalan CP 5 Powder vs. Sodium Tripolyphosphate (STPP) and Small-Molecule Chelants (EDTA, Citrate, MGDA, GLDA):
Unlike STPP (which causes aquatic phosphorus eutrophication and is banned in consumer laundry and dishwashing detergents across major markets) and unlike small-molecule chelants such as trisodium citrate, EDTA, MGDA, and GLDA (which bind calcium strictly on a 1:1 molar stoichiometric basis and provide zero threshold crystal distortion or steric soil dispersion), Sokalan CP 5 Powder is 100% phosphorus-free, combines high stoichiometric chelation with sub-stoichiometric threshold scale inhibition and electrosteric dispersion, and does not demetallize copper- or chromium-containing metal-complex textile dyes.

PACKAGING, STORAGE AND HANDLING GUIDELINES

To preserve the free-flowing spray-dried powder morphology, rapid cold-water solubility, and low moisture content of Sokalan CP 5 Powder (Powdered Acrylic Acid-Maleic Acid Copolymer Sodium Salt, CAS 52255-49-9 / 68479-09-4), warehouse operators and plant engineers should follow the packaging, storage, and material-handling guidelines established by Ataman Kimya.

Commercial Packaging Configurations Supplied by Ataman Kimya:
- 20 kg or 25 kg Multi-Wall Moisture-Barrier Bags: Heavy-duty kraft paper or woven polypropylene outer bags lined with a heat-sealed internal low-density polyethylene (LDPE) moisture-vapor barrier liner, stacked on shrink-wrapped, fumigated ISPM-15 pallets (typically 500 kg to 1,000 kg net per pallet).
- 500 kg to 1,000 kg Flexible Intermediate Bulk Containers (FIBCs / Big Bags): High-tenacity woven polypropylene super sacks equipped with a sealed internal polyethylene moisture liner and top filling / bottom discharge spouts for high-volume detergent, water-treatment, and construction mortar plants.
Storage Conditions and Hygroscopic Moisture Protection:

 Cool, Dry Indoor Warehouse Storage: Because spray-dried Poly(acrylic acid-co-maleic acid) Sodium Salt Powder (~92.0% active solids, <= 8.0% bound moisture) consists of high-surface-area hollow microspheres (d50 = 80 to 180 microns) rich in ionized sodium carboxylate groups, the dry powder is strongly hygroscopic when exposed to humid air (> 60% relative humidity). If bags of Sokalan CP 5 Powder are left open in a humid warehouse, the powder rapidly absorbs atmospheric moisture, causing the particle surfaces to become tacky and fuse into hard cakes or lumps. Therefore, store Sokalan CP 5 Powder in a cool, dry, well-ventilated indoor warehouse at ambient temperatures between 5 °C and 35 °C and relative humidity below 60%, away from damp walls, steam lines, rain, and direct sunlight.

 Immediate Resealing of Partially Used Bags and Stacking Limits: Whenever a 20–25 kg bag or Big Bag of Sokalan CP 5 Powder is opened for partial batch weighing, operators must immediately press out trapped humid air and twist-tie or heat-seal the inner LDPE liner tightly before closing the outer bag. Avoid double-stacking heavy pallets of Sokalan CP 5 Powder for prolonged periods in warm climates to prevent mechanical pressure caking (note that if mild physical lumping occurs without chemical contamination, the lumps dissolve completely in water with zero loss of chelating or dispersing power). In unopened original moisture-barrier packaging stored under dry conditions, Sokalan CP 5 Powder has a guaranteed shelf life of at least 24 months (2 years) from the date of manufacture.

Industrial Hygiene, Dust Control, and Spill Cleanup Procedures:
Because Sokalan CP 5 Powder is a fine spray-dried powder (mean particle size 80 to 180 microns), dumping bags into hoppers or ribbon blenders can generate airborne organic dust. Operate local exhaust ventilation (LEV) at bag-dumping stations and ground metallic powder chutes and mixers to prevent electrostatic charge accumulation, keeping workplace airborne dust below general occupational exposure limits (< 10 mg/m3 inhalable dust and < 3 mg/m3 respirable dust).
If dry Sokalan CP 5 Powder is spilled onto factory floors, NEVER flush the dry powder directly with water first! Contact between water and MA/AA Copolymer Sodium Salt Powder immediately forms an extremely slick, viscous, slippery polymeric gel film on concrete and tiled floors that creates a severe slip-and-fall hazard. Always vacuum up spilled Sokalan CP 5 Powder dry using an industrial HEPA-filtered vacuum cleaner (or sweep up dry gently without raising dust clouds) into salvage containers, and only wash the final trace floor residue with plenty of water afterward.

FIRST AID MEASURES, TOXICOLOGY AND SAFETY INFORMATION

Sokalan CP 5 Powder (Sodium Salt of Maleic Acid-Acrylic Acid Copolymer Powder, CAS 52255-49-9 / 68479-09-4) exhibits a very favorable toxicological profile and is not classified as a hazardous substance or hazardous mixture under European Union Regulation (EC) No 1272/2008 (CLP) or the UN Globally Harmonized System (GHS). Nevertheless, because Sokalan CP 5 Powder is a fine, hygroscopic spray-dried powder, standard occupational dust-control and first aid measures must be followed in industrial facilities.

First Aid Measures for Exposure to Sokalan CP 5 Powder:
- Eye Contact with Sokalan CP 5 Powder: If airborne dust or solid particles of Sokalan CP 5 Powder (or splashes of its reconstituted aqueous solution) enter the eyes, do not rub the eyes. Immediately flush the eyes with plenty of lukewarm, gently flowing clean water or sterile isotonic eyewash solution for at least 15 minutes while holding both upper and lower eyelids wide open. Remove contact lenses after the first 1 to 2 minutes if present and easy to do, then continue rinsing thoroughly to ensure all hydrated Poly(acrylic acid-co-maleic acid) Sodium Salt film is washed out from beneath the eyelids. Although Sokalan CP 5 Powder is classified as non-irritating in OECD 405 rabbit eye tests, fine dry hygroscopic powder can cause transient mechanical or osmotic eye redness and watering; consult an ophthalmologist if irritation persists.

- Skin Contact with Sokalan CP 5 Powder: If Sokalan CP 5 Powder contacts the skin, brush off excess dry powder and wash the affected area thoroughly with plenty of water and mild soap. When Powdered Acrylic Acid-Maleic Acid Copolymer Sodium Salt contacts damp or sweaty skin, it hydrates into a slippery, slightly tacky film that rinses off easily with warm water. Sokalan CP 5 Powder is non-irritating to skin (OECD 404) and is not a skin sensitizer (OECD 406); seek medical attention only if rare skin redness persists.

- Inhalation of Sokalan CP 5 Powder Dust: If a worker inhales airborne dust generated during manual scooping, bag dumping, or dry blending of Sokalan CP 5 Powder, move the exposed person immediately into fresh air and keep them warm and at rest in a comfortable breathing posture. Instruct the person to blow their nose gently and rinse their mouth, nasal passages, and throat with clean water to clear any adhered hygroscopic Sodium Salt of Maleic Acid-Acrylic Acid Copolymer Powder particles from the upper respiratory tract. Seek medical attention if coughing, sneezing, or throat irritation continues.

- Ingestion of Sokalan CP 5 Powder: If Sokalan CP 5 Powder is accidentally swallowed, immediately rinse the mouth thoroughly with water and give the conscious person 1 to 2 glasses (200 to 300 mL) of water to drink in order to dissolve and dilute the MA/AA Copolymer Sodium Salt Powder in the stomach. Never give anything by mouth to an unconscious or convulsing person, and do not induce vomiting unless explicitly directed by a physician or poison control center. Because Sokalan CP 5 Powder has very low acute oral toxicity (LD50 > 5,000 mg/kg in rats), small accidental ingestions pose minimal systemic risk; consult a physician if gastrointestinal discomfort occurs.

Personal Protective Equipment (PPE) and Fire-Fighting Measures:
Operators handling open bags of Sokalan CP 5 Powder should wear dust-tight chemical safety goggles or glasses with side shields (EN 166), impervious protective gloves made of nitrile rubber, butyl rubber, or polychloroprene (EN 374), long-sleeved industrial coveralls, and slip-resistant safety footwear. Whenever weighing, scooping, or dumping Sokalan CP 5 Powder at stations where local exhaust ventilation does not completely capture airborne dust, wear a certified disposable half-mask particulate respirator (EN 149 FFP2 or NIOSH N95).
Sokalan CP 5 Powder is not classified as a flammable solid and is not self-heating, with an auto-ignition temperature above 400 °C; however, as with all fine organic sodium salt powders, high-concentration airborne dust clouds should be kept away from open flames and electrostatic sparks (ground all metallic hoppers and pneumatic transfer lines). Suitable extinguishing media for surrounding fires include water fog/spray, alcohol-resistant foam, dry chemical powder, and carbon dioxide (CO2). Thermal decomposition above 250 °C in a fire may evolve carbon monoxide (CO), carbon dioxide (CO2), sodium carbonate ash, and irritating organic smoke; firefighters should wear positive-pressure self-contained breathing apparatus (SCBA).

Toxicological and Ecotoxicological Profile:
- Acute Oral and Dermal Toxicity (OECD 401 / 402): LD50 Oral (rat) > 5,000 mg/kg body weight; LD50 Dermal (rat/rabbit) > 5,000 mg/kg body weight.
- Skin/Eye Irritation, Sensitization, and Genotoxicity: Non-irritating to skin (OECD 404) and eyes (OECD 405); non-sensitizing in Guinea Pig Maximization Tests (OECD 406); negative in Ames bacterial reverse mutation assays (OECD 471); non-carcinogenic and non-teratogenic (non-CMR).
- Aquatic Ecotoxicity and Wastewater Fate: Acute fish toxicity LC50 (96 h, Danio rerio / Leuciscus idus, OECD 203) > 100 mg/L (typically > 500 mg/L); Daphnia magna EC50 (48 h, OECD 202) > 100 mg/L; Algae EC50 (72 h, OECD 201) > 100 mg/L; Activated sludge respiration inhibition EC20 (OECD 209) > 1,000 mg/L. In municipal biological wastewater treatment plants (OECD 303A), > 90% to 95% of Sokalan CP 5 Powder is removed from the aqueous phase via calcium-mediated precipitation and irreversible adsorption onto sewage sludge flocs without remobilizing heavy metals from river sediments.

REGULATORY STATUS, COMPLIANCE AND INTERNATIONAL CLASSIFICATIONS

Sokalan CP 5 Powder (Acrylic Acid-Maleic Acid Copolymer Sodium Salt Powder, CAS 52255-49-9 / 68479-09-4, EC 610-802-6) complies with major international chemical inventory, detergent, textile, agrochemical, and transport regulations:

 Global Chemical Inventory Registrations:
Listed and compliant across all major national chemical inventories (under CAS 52255-49-9, CAS 68479-09-4, or parent acid copolymer CAS 29132-58-9): United States TSCA (Active commercial status), European Union REACH Regulation (EC) No 1907/2006 (Polymer Exempt under Article 2(9), with monomer precursors acrylic acid and maleic anhydride/acid fully REACH-registered), Turkish KKDIK Regulation, Canada DSL, Australia AIIC, Japan ENCS (6-898 / 6-901), South Korea KECI (KE-04125), China IECSC, Philippines PICCS, New Zealand NZIoC, and Taiwan TCSI.

 European Union Detergent Regulation (EC) No 648/2004:
Fully permitted in household and institutional laundry detergents, warewashing powders, and cleaning compounds across the European Union, the United Kingdom, and Turkey. Containing zero phosphorus, < 500 ppm residual monomers, and achieving > 90% elimination in biological wastewater treatment plants, Sokalan CP 5 Powder is a cornerstone raw material for phosphate-free detergent compliance.

 Textile Ecological Standards (OEKO-TEX and ZDHC) and US EPA Inert Clearances:
Because Sokalan CP 5 Powder is 100% free of APEO/NPEO, AOX, heavy metals, formaldehydes, and VOCs, powdered textile pretreatment, bleaching, and dyeing auxiliaries formulated with Sokalan CP 5 Powder conform to OEKO-TEX Standard 100 and ZDHC MRSL requirements. Furthermore, acrylic acid–maleic acid copolymer sodium salts are cleared as inert dispersing/stabilizing ingredients in agricultural pesticide formulations under US EPA 40 CFR Part 180.

 International Transport Classification (ADR / RID / IMDG / IATA):
Sokalan CP 5 Powder is not regulated as dangerous goods under road/rail (ADR/RID), maritime (IMDG Code), or air (ICAO-TI / IATA-DGR) transport regulations (UN Number: Not Regulated; Transport Hazard Class: None; Packing Group: None; Marine Pollutant: No; German Water Hazard Class: WGK 1, slightly hazardous to water, AwSV Identification No. 1463).

FREQUENTLY ASKED QUESTIONS (FAQ)

 What is Sokalan CP 5 Powder and what is its exact chemical identity?
Sokalan CP 5 Powder is the spray-dried fine powder form of the fully neutralized sodium salt of an acrylic acid-maleic acid copolymer, chemically designated as Poly(acrylic acid-co-maleic acid) Sodium Salt Powder or 2-Butenedioic acid (2Z)-, polymer with 2-propenoic acid, sodium salt (CAS Number 52255-49-9 / 68479-09-4, EC Number 610-802-6). Supplied by Ataman Kimya with a weight-average molecular weight (Mw) of approximately 70,000 g/mol and an active solids content of ~92.0% w/w, it functions as a high-charge-density anionic polycarboxylate co-builder, anti-redeposition dispersant, anti-incrustation polymer, and mineral deflocculant.

 How does Sokalan CP 5 Powder differ from Sokalan CP 5 Granules and Sokalan CP 5 Liquid?
All three grades contain the exact same 70,000 g/mol Acrylic Acid-Maleic Acid Copolymer Sodium Salt macromolecule. Sokalan CP 5 Powder (~92.0% active solids) is a fine spray-dried powder with a median particle size (d50) of 80 to 180 microns and a loose bulk density of 450 to 650 g/L, engineered for rapid cold-water dissolution and homogeneous dry-blending with fine powders (such as light soda ash, Zeolite A powder, agrochemical WPs, ceramic slips, and dry-mix mortars). Sokalan CP 5 Granules (~92.0% active solids) is a denser, roll-compacted dust-free granular grade (d50 = 450 to 750 microns, bulk density 600 to 780 g/L) designed for high-speed rotary tableting of ADW/laundry tablets and non-segregating compact detergent blends, while Sokalan CP 5 Liquid is a 40.0% w/w aqueous solution used in liquid detergents and spray-tower crutcher slurries.

 How do I convert dosage weights between Sokalan CP 5 Liquid (40%) and Sokalan CP 5 Powder (92%)?
Because Sokalan CP 5 Powder contains 92.0% w/w active polymer and Sokalan CP 5 Liquid contains 40.0% w/w active polymer, 1.000 kg of Sokalan CP 5 Powder supplies the exact same active polymer weight (920 g) as 2.300 kg of Sokalan CP 5 Liquid. To convert a liquid dosage to Sokalan CP 5 Powder, multiply the weight of Sokalan CP 5 Liquid by 0.435 (i.e., 40 / 92 = 0.4348).

 Can industrial users dissolve Sokalan CP 5 Powder in water locally to prepare a 40% liquid solution?
Yes. Dissolving 435 kg of Sokalan CP 5 Powder in 565 kg of warm deionized or softened water (25 °C to 35 °C) by sifting the powder steadily into the vortex of a mechanical agitator yields 1,000 kg of a crystal-clear 40.0% w/w aqueous solution identical in pH (8.0 to 8.5), density (~1.30 g/cm3), and viscosity (~500 mPa.s) to commercial Sokalan CP 5 Liquid, while saving 56.5% on international shipping weight.

 Why does Sokalan CP 5 Powder outperform homopolymeric sodium polyacrylate powder (Mw 4,500) in detergents?
Standard homopolymeric sodium polyacrylate powder contains only one carboxylate group per C3 monomer unit and has a short chain length, giving a calcium-binding capacity of ~200 to 230 mg CaCO3/g. By incorporating vicinal dicarboxylic sodium maleate units alongside sodium acrylate units across a 70,000 g/mol backbone, Sokalan CP 5 Powder delivers 30% to 50% higher calcium sequestration (280 to 350 mg CaCO3/g active polymer), far stronger steric anti-redeposition of clay and soot on fabrics, faster calcium shuttling to Zeolite A, and higher spray-dried detergent bead strength.

 How does Sokalan CP 5 Powder prevent fabric incrustation and wet graying in phosphate-free laundry powders?
During washing in hard water, Sokalan CP 5 Powder chelates dissolved Ca2+ and shuttles it rapidly into the pores of Zeolite A before calcium carbonate can precipitate, while sub-stoichiometric amounts of the polymer adsorb onto embryonic calcite crystal nuclei to distort their lattice so they cannot adhere to textile fibers. Simultaneously, the 70,000 g/mol polyanionic chains adsorb onto detached clay, rust, and soot particles, imparting a strong negative zeta potential (< -40 mV) that keeps dirt suspended in the wash water.

 Why is Sokalan CP 5 Powder preferred over EDTA in powdered textile bleaching and reactive dye wash-off auxiliaries?
Strong monomeric chelants like EDTA and DTPA strip copper, chromium, and iron atoms out of the chromophore structure of metal-complex reactive and direct dyes, causing shade shifts and loss of lightfastness. Sokalan CP 5 Powder sequesters Ca2+ and Mg2+ hardness ions, prevents sodium silicate roller scale during peroxide bleaching, and disperses hydrolyzed unfixed dye to prevent back-staining—all without demetallizing metal-complex textile dyestuffs.

 Is Sokalan CP 5 Powder stable when dry-blended with caustic soda, sodium metasilicate, percarbonate, or chlorine bleach?
Yes. Because the main polymer chain of Sodium Salt of Maleic Acid-Acrylic Acid Copolymer consists exclusively of saturated carbon-carbon single bonds (-C-C-) with zero hydrolyzable ester linkages or oxidizable double bonds, and because its residual moisture is tightly bound (<= 8.0%), Sokalan CP 5 Powder is stable in dry blends containing caustic soda pearls, sodium metasilicate, coated sodium percarbonate, TAED, and sodium dichloroisocyanurate (NaDCC).

 Why should dry spills of Sokalan CP 5 Powder always be vacuumed or swept up dry before washing floors with water?
When water contacts fine Sokalan CP 5 Powder on concrete, epoxy, or tile floors, the hydrophilic polycarboxylate microspheres hydrate immediately into an extremely slick, slippery gel film. Vacuuming or sweeping up spilled powder completely in the dry state first eliminates this slip hazard.

 How can buyers procure Sokalan CP 5 Powder and request COA, TDS, and SDS documentation from Ataman Kimya?
Industrial formulators and procurement teams can source Sokalan CP 5 Powder (in 20–25 kg PE-lined multi-wall bags or 500–1,000 kg FIBCs / Big Bags) together with batch-specific Certificates of Analysis (COA), Technical Data Sheets (TDS), and Safety Data Sheets (SDS) directly from Ataman Kimya by calling +90 216 577 10 10 or emailing info@atamankimya.com.

TECHNICAL SUMMARY

Sokalan CP 5 Powder—chemically recognized as Powdered Acrylic Acid-Maleic Acid Copolymer Sodium Salt, Poly(acrylic acid-co-maleic acid) Sodium Salt Powder, Sodium Salt of Maleic Acid-Acrylic Acid Copolymer Powder, and MA/AA Copolymer Sodium Salt Powder (CAS Number 52255-49-9 / 68479-09-4, EC Number 610-802-6)—stands as the benchmark 92.0% active spray-dried 70,000 g/mol polycarboxylate co-builder, anti-redeposition polymer, anti-incrustation agent, and mineral dispersant for dry-blended industrial formulations. Combining a high calcium-binding capacity (280 to 350 mg CaCO3/g active polymer at pH 11) and complete alkaline and oxidative bleach stability with a fine hollow-microsphere powder morphology (median particle size d50 of 80 to 180 microns, apparent loose bulk density of 450 to 650 g/L), Sokalan CP 5 Powder dissolves rapidly in cold water, blends homogeneously without segregation into fine powder detergents, institutional cleaners, textile auxiliaries, water-treatment compounds, agrochemical wettable powders, ceramic slips, and construction dry-mix mortars, and cuts shipping weight by 56.5% compared to 40% liquid grades.

Ataman Kimya supplies high-purity Sokalan CP 5 Powder (alongside compacted dust-free Sokalan CP 5 Granules 92% and aqueous Sokalan CP 5 Liquid 40%) in moisture-barrier 20–25 kg PE-lined bags and 500–1,000 kg Big Bags (FIBCs), backed by ready warehouse stock in Turkey, strict batch-to-batch quality verification, and fast international export logistics. To request a commercial quotation, bulk pricing, laboratory evaluation samples, Technical Data Sheets (TDS), Safety Data Sheets (SDS), or a batch-specific Certificate of Analysis (COA) for Sokalan CP 5 Powder (Powdered Acrylic Acid-Maleic Acid Copolymer Sodium Salt, CAS 52255-49-9 / 68479-09-4), please contact the technical sales team at Ataman Kimya using the contact details below.

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