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Glycerol Triacetate E1518, also known as triacetin, glyceryl triacetate or propane-1,2,3-triyl triacetate (CAS No 102-76-1, C9H14O6), is the triester of glycerol with acetic acid, a clear, colorless, nearly odorless liquid that is used above all as a plasticizer for cellulose acetate, a hardener for ester-cured foundry binders, a solvent and coalescing agent in coatings and inks, and, in food-grade quality, as the food additive E1518.
Triacetin is valued in industry because it combines high solvency for cellulose esters, resins and dyes with low volatility, a high boiling point, low toxicity and good biodegradability, which makes it one of the most widely used "green" plasticizers and process solvents.
Glyceryl triacetate works physically as a small, polar ester molecule that penetrates polymer chains and increases their mobility, and chemically as a slowly hydrolyzing ester that releases acetic acid and glycerol in alkaline media, which is the basis of its use as a curing agent in silicate and alkaline resin systems.
CAS No: 102-76-1
EC No: 203-051-9
Molecular formula: C9H14O6
Molecular weight: 218.20 g/mol
Appearance: Clear, colorless liquid
Density: approx. 1.155 g/cm³ (20 °C)
Boiling point: approx. 258–259 °C
Melting point: approx. −78 °C
Flash point: approx. 138 °C
Water solubility: approx. 61 g/L (20 °C)
Viscosity: approx. 23 mPa·s (20 °C)
Food additive number: E1518
COMMON PRODUCT & CHEMICAL NAMES OF GLYCEROL TRIACETATE E1518:
Glycerol Triacetate E1518, Glycerol Triacetate, Glyceryl Triacetate, Glycerin Triacetate, Triacetin, Triacetine, Triacetinum, E1518, Propane-1,2,3-triyl Triacetate, 1,2,3-Triacetoxypropane, 1,2,3-Triacetylglycerol, Triacetylglycerol, Triacetyl Glycerine, Triacetyl Glycerol, 1,2,3-Propanetriol Triacetate, Enzactin, Fungacetin, Glyped
Glycerol triacetate is the name most often used in chemical and technical literature, while triacetin is the common short name and the INCI and pharmacopoeial name. Glyceryl triacetate and glycerin triacetate are equivalent designations, and propane-1,2,3-triyl triacetate is the systematic IUPAC name. E1518 is the European food additive number. Enzactin, Fungacetin and Glyped are historical pharmaceutical trade names.
Glycerine triacetate should not be confused with monoacetin and diacetin (glycerol mono- and diacetates), which are partially acetylated glycerols with higher water solubility, or with glyceryl tripropionate and other triglycerides. Ethyl acetate and other acetic acid esters are also different substances.
WHAT IS GLYCEROL TRIACETATE E1518?
Triacetin is the fully acetylated form of glycerol. All three hydroxyl groups of glycerol are esterified with acetic acid, giving the structure C3H5(OCOCH3)3. It belongs to the triglycerides, but unlike fats it carries the shortest possible fatty acid, acetic acid.
The compound was first prepared in the 19th century, and it is now produced industrially by esterification of glycerol with acetic acid or acetic anhydride. With acetic acid, the reaction is carried out at elevated temperature in the presence of an acid catalyst, and water is removed continuously. With acetic anhydride, the reaction is faster and acetic acid is formed as a by-product. The crude ester is neutralized, washed where necessary and purified by vacuum distillation.
The largest single application of Glycerol Triacetate E1518 is the plasticization of cellulose acetate tow used in cigarette filters. The ester is sprayed onto the fiber bundle, partially dissolves the fiber surfaces and bonds the fibers at their contact points. This gives the filter rod its firmness and shape.
In foundries, Glycerol Triacetate E1518 is a well-known ester hardener for sodium silicate and alkaline phenolic resin binders. Mixed with sand and binder, the ester slowly hydrolyzes in the alkaline environment, lowers the pH and causes the binder to gel and harden, so molds and cores can be produced without heating.
In coatings, inks, adhesives and plastics, Glycerol Triacetate E1518 acts as a plasticizer, solvent and coalescing agent. It is compatible with cellulose acetate, cellulose nitrate, ethylcellulose, polyvinyl acetate, some acrylics and natural resins, and it can be used to adjust flexibility, flow and film formation.
For producers, Glycerol Triacetate E1518 is a low-odor, low-hazard liquid that is easy to handle, store and dose, and that can replace more hazardous plasticizers or solvents in many applications.
In finished products, it contributes to firm cigarette filters, strong foundry molds and cores, flexible films and coatings, and smooth inks and adhesives.
The glycerol triester can be evaluated in filter tow plasticization, foundry binders, cellulose ester plastics and films, lacquers and inks, adhesives, biodegradable polymers, propellants, fuel additive research and, in food and pharmaceutical grades, in flavor carriers, chewing gum, capsules and coatings.
Glyceryl triacetate is a clear, colorless liquid with only a faint odor. It has a high boiling point of about 258–259 °C and remains liquid down to about −78 °C, which makes it easy to handle over a wide temperature range. It is moderately soluble in water (about 61 g/L at 20 °C) and miscible with ethanol, acetone and many other organic solvents, while its miscibility with mineral oil and many vegetable oils is limited.
Commercial grades include technical grade for industrial use, food grade (E1518, FCC/JECFA) and pharmaceutical grade (Ph. Eur., USP-NF). Typical assay values are 99.2–99.5 % or higher.
CAS NO, EC / EINECS NO AND CHEMICAL IDENTIFICATION OF GLYCEROL TRIACETATE E1518
Product name: Glycerol Triacetate E1518
Common names: Triacetin, Glyceryl Triacetate
Chemical name: Propane-1,2,3-triyl triacetate
INCI name: Triacetin
Food additive number: E1518 (INS 1518)
CAS No: 102-76-1
EC / EINECS No: 203-051-9
Molecular formula: C9H14O6
Molecular weight: 218.20 g/mol
SMILES: CC(=O)OCC(COC(C)=O)OC(C)=O
Chemical class: Short-chain triglyceride, acetic acid ester of glycerol
Main functions: Plasticizer, solvent, coalescing agent, ester hardener for foundry binders, carrier and humectant (food), excipient (pharmaceuticals)
Glycerine triacetate is registered under REACH and is generally not classified as hazardous under GHS according to supplier safety data sheets. It is an authorized food additive in the EU (E1518) and is affirmed as generally recognized as safe (GRAS) in the United States under 21 CFR 184.1901. It has monographs in the European Pharmacopoeia and USP-NF under the name triacetin.
CHEMICAL STRUCTURE AND MOLECULAR PROPERTIES OF GLYCEROL TRIACETATE E1518
The Glycerol Triacetate E1518 molecule consists of a three-carbon glycerol backbone with an acetyl ester group on each carbon. The molecule has no free hydroxyl groups and no carbon–carbon double bonds.
POLARITY AND SOLVENCY
The three ester groups give Glycerol Triacetate E1518 a medium polarity. This allows it to dissolve or swell polar polymers such as cellulose acetate and to mix with water to a limited extent, while still being an organic, ester-type solvent.
LOW VOLATILITY
Despite its relatively low molecular weight, the polar ester groups create strong intermolecular attractions, which explains its high boiling point and low vapor pressure at room temperature.
HYDROLYSIS
The glycerol triester is stable at neutral pH, but its ester bonds can be hydrolyzed by strong acids, strong bases and enzymes (esterases), releasing acetic acid and glycerol. In alkaline foundry binders, this controlled hydrolysis is exactly what causes hardening.
STABILITY
The fully saturated structure resists oxidation, so Glycerol Triacetate E1518 does not turn rancid and remains colorless during storage.
PHYSICAL AND CHEMICAL PROPERTIES OF GLYCEROL TRIACETATE E1518
GENERAL TECHNICAL SPECIFICATIONS:
Physical appearance: Clear, colorless, slightly oily liquid
Odor: Odorless to faint
Taste: Slightly sweet at low concentrations, bitter at higher concentrations
Molecular formula: C9H14O6
Molecular weight: 218.20 g/mol
CAS No: 102-76-1
EC / EINECS No: 203-051-9
Assay: Typically ≥ 99.2–99.5 %
Density: Approx. 1.154–1.164 g/cm³ (25 °C)
Refractive index: Approx. 1.429–1.435
Boiling point: Approx. 258–259 °C
Melting point: Approx. −78 °C
Flash point: Approx. 138 °C
Viscosity: Approx. 23 mPa·s (20 °C)
Vapor pressure: Low, approx. 1 Pa at about 38 °C
Water solubility: Approx. 61 g/L (20 °C)
Solubility: Miscible with ethanol, acetone, ether and many organic solvents, limited miscibility with mineral oils
Acidity: Typically max. approx. 0.005 % (as acetic acid)
Water content: Typically max. approx. 0.05–0.10 %
Color: Typically max. 15–30 APHA
Heavy metals: Typically max. 5 ppm (food and pharmaceutical grades)
Stability: Stable under normal conditions, hydrolyzes under strongly acidic or alkaline conditions
Acidity and water content are key quality parameters for Glycerol Triacetate E1518, because water and residual acid promote hydrolysis during storage and can influence cure speed in foundry binders and stability in other applications.
These values are typical and do not represent a binding specification. For the current specification of the supplied Glycerol Triacetate E1518 grade, please contact Ataman Kimya.
INDUSTRIAL APPLICATIONS OF GLYCEROL TRIACETATE E1518
CIGARETTE FILTER TOW
Purpose: To bond cellulose acetate fibers into firm filter rods.
Role of Glycerol Triacetate E1518: Plasticizer that softens and fuses the fiber surfaces.
Typical addition: Several percent based on tow weight, depending on desired filter hardness.
Limitations: Dosage and curing time must be controlled to avoid soft or overly hard filters.
FOUNDRY SAND BINDERS
Purpose: To harden sodium silicate or alkaline phenolic resin binders at room temperature.
Role of Glycerol Triacetate E1518: Ester hardener that hydrolyzes in the alkaline binder and triggers gelation.
Performance effect: Controlled working time and strength development of molds and cores.
Limitations: Cure speed depends on ester type, temperature and binder composition, Glycerol Triacetate E1518 is often blended with slower or faster esters such as diacetin or propylene carbonate.
CELLULOSE ESTER PLASTICS AND FILMS
Purpose: To make cellulose acetate and related plastics flexible and processable.
Role of Glycerol Triacetate E1518: Primary or secondary plasticizer.
Limitations: Compatibility and migration must be checked for each polymer.
COATINGS, INKS AND ADHESIVES
Purpose: To improve film formation, flexibility and flow.
Role of Glycerol Triacetate E1518: Plasticizer, solvent and coalescing agent with low odor.
BIODEGRADABLE POLYMERS
Purpose: To plasticize polymers such as polylactic acid and cellulose-based materials.
Role of Glycerol Triacetate E1518: Biodegradable, low-toxicity plasticizer.
OTHER TECHNICAL USES
Triacetin is also used as a solvent for dyes, as a plasticizer in some propellant compositions, as a carrier for fragrances in air care products and in research as a fuel additive and biodiesel modifier.
HOW DOES GLYCEROL TRIACETATE E1518 WORK?
AS A PLASTICIZER
Glycerol Triacetate E1518 molecules penetrate between polymer chains, shield polar interactions between them and increase free volume. The glass transition temperature of the polymer decreases, and the material becomes softer and more flexible.
AS A BINDER FOR FILTER TOW
On cellulose acetate fibers, Glycerol Triacetate E1518 dissolves the surface layer. Where fibers touch, the softened surfaces fuse, and after the ester diffuses into the fibers, the bonds solidify, giving a rigid but porous filter structure.
AS AN ESTER HARDENER
In alkaline sodium silicate or phenolic resin binders, Glycerol Triacetate E1518 hydrolyzes to acetic acid and glycerol. The acid neutralizes part of the alkali, the pH falls and the binder gels and hardens around the sand grains.
AS A SOLVENT AND CARRIER
Its medium polarity allows Glycerol Triacetate E1518 to dissolve many dyes, flavors, fragrances and resins and to carry them uniformly in a formulation.
MAIN FUNCTIONS OF GLYCEROL TRIACETATE E1518:
Plasticizer for cellulose acetate and other polymers
Fiber bonding agent for filter tow
Ester hardener for foundry binders
Solvent and coalescing agent in coatings, inks and adhesives
Dye and fragrance solvent
Carrier and humectant in food (E1518)
Plasticizer and solvent in pharmaceutical dosage forms
IN WHICH SECTORS IS GLYCEROL TRIACETATE E1518 USED?
MAIN AREAS OF USE:
Tobacco products (filter tow plasticizer)
Foundry (ester-cured sand binders)
Plastics and cellulose ester films
Paints, lacquers, coatings and inks
Adhesives
BIODEGRADABLE POLYMERS
Perfumery and air care
Food and flavor industry (E1518)
Pharmaceuticals (excipient)
Cosmetics and personal care
Specialty applications such as propellants and fuel research
Industrial users generally focus on purity, acidity, water content and price. Food and pharmaceutical users need appropriate grades and documentation.
IS GLYCEROL TRIACETATE E1518 USED IN COSMETIC, FOOD, AND PHARMACEUTICAL APPLICATIONS?
Food: Yes. Glyceryl triacetate is an authorized food additive in the EU, mainly used as a carrier and solvent for flavorings and in specific foods such as chewing gum. In the US, triacetin is affirmed as GRAS. Food-grade material must be used.
Pharmaceuticals: Yes. Under the name triacetin, it is used as a plasticizer in film coatings and capsules, as a solvent and as a humectant. Pharmaceutical-grade material complying with Ph. Eur. or USP-NF should be used.
Cosmetics: Yes. Triacetin is used in perfumes, deodorants, nail products and skin care as a solvent, plasticizer and fixative.
Technical grades intended for industrial use should not be used in food, cosmetic or pharmaceutical products.
WHICH PROBLEMS CAN GLYCEROL TRIACETATE E1518 HELP SOLVE?
Soft or unstable filter rods: Proper plasticization with Glycerol Triacetate E1518 gives firm, uniform filters.
Heat-dependent mold hardening: Ester-cured binders with Glycerol Triacetate E1518 harden at room temperature, saving energy.
Brittle cellulose films and plastics: Glycerol Triacetate E1518 increases flexibility.
Hazardous plasticizers or solvents: Glycerol Triacetate E1518 is a low-toxicity, biodegradable alternative in many applications.
Poor dye or fragrance solubility: Its solvency improves dissolution and distribution.
Results depend on dosage, formulation and process, and should be verified in trials.
THINGS TO CONSIDER WHEN USING GLYCEROL TRIACETATE E1518
The behavior of Glycerol Triacetate E1518 depends strongly on its interaction with the system. In foundries, its hydrolysis speed sets the working time, in plastics, its compatibility and migration determine long-term properties.
POINTS TO CONSIDER:
Choose the grade (technical, food, pharmaceutical) that matches the application.
Control water content and acidity to avoid premature hydrolysis.
In foundry binders, adjust ester blend and dosage to sand temperature and desired working time.
Check compatibility and migration in polymers.
Avoid contact with strong acids, bases and oxidizing agents during storage.
Use suitable container materials (stainless steel, lined steel, HDPE).
Note that Glycerol Triacetate E1518 can swell some rubbers and plastics.
Glycerine triacetate is generally not classified as hazardous. Prolonged skin contact and eye contact should be avoided, and adequate ventilation should be ensured when heated.
INITIAL FORMULATION APPROACHES FOR GLYCEROL TRIACETATE E1518
The following examples are laboratory starting points for evaluating Glycerol Triacetate E1518 in industrial applications. They are not finished commercial formulations. The added percentage compositions are illustrative starting mixtures, not validated manufacturer recipes. Percentages refer to raw materials as supplied and total 100.00 % by weight. Final proportions and processing conditions must be established through laboratory testing.
EXAMPLE 1: ESTER-CURED SODIUM SILICATE FOUNDRY SAND
Objective: To evaluate how the amount of Glycerol Triacetate E1518 affects working time and strength of sodium silicate-bonded sand.
Illustrative initial components for the 10 % hardener-on-binder trial (% w/w of the complete mixture):
Silica sand: 96.8054 %
Sodium silicate binder (as supplied): 2.9042 %
Glycerol Triacetate E1518: 0.2904 %
Total: 100.0000 %
This is the normalised composition of 100 parts sand, 3 parts binder and 0.3 parts triacetin, rounded to four decimal places. The 8, 10, 12 and 15 % levels below refer to hardener relative to binder, not to the complete sand mixture. Verify cure behaviour with the actual silicate and sand, control respirable silica dust during handling.
INITIAL COMPONENTS:
Silica sand: 100 parts
Sodium silicate binder: approx. 2.5–3.5 parts
Glycerol Triacetate E1518: approx. 8, 10, 12 and 15 % based on binder weight
Optional: blend with diacetin or another ester to adjust cure speed
APPLICATION APPROACH:
Sand is mixed with Glycerol Triacetate E1518 first, then with sodium silicate.
Test specimens are rammed immediately and at intervals to determine working time.
Compressive and tensile strength are measured after defined curing times.
The ester level giving the desired working time and strength is selected.
EXAMPLE 2: PLASTICIZATION OF CELLULOSE ACETATE FILM
Objective: To determine the effect of Glycerol Triacetate E1518 on flexibility and clarity of cellulose acetate films.
Illustrative initial components for the 20-part plasticiser trial (% w/w of the casting mixture):
Cellulose acetate: 10.00 %
Glycerol Triacetate E1518: 2.00 %
Acetone: 88.00 %
Total: 100.00 %
For the 10-part trial, use 10.00 % cellulose acetate, 1.00 % triacetin and 89.00 % acetone, total 100.00 %.
For the 30-part trial, use 10.00 % cellulose acetate, 3.00 % triacetin and 87.00 % acetone, total 100.00 %.
These percentages include the casting solvent, the plasticiser-to-polymer ratios correspond to the parts-based approach below. Confirm that the selected cellulose acetate grade dissolves in the solvent. Handle acetone with suitable ventilation and away from ignition sources.
INITIAL APPROACH:
Cellulose acetate: 100 parts
Glycerol Triacetate E1518: approx. 10, 20 and 30 parts
Solvent (for example acetone): as needed to cast the film
APPLICATION APPROACH:
Cellulose acetate and Glycerol Triacetate E1518 are dissolved in the solvent.
Films are cast and dried under controlled conditions.
Tensile strength, elongation, glass transition temperature, clarity and plasticizer migration are measured.
EXAMPLE 3: GLYCEROL TRIACETATE E1518 AS COALESCING AND PLASTICIZING AGENT IN A NITROCELLULOSE LACQUER
Objective: To evaluate Glycerol Triacetate E1518 as a low-odor plasticizer in a nitrocellulose lacquer.
Illustrative initial components for the 3 % triacetin trial (% w/w):
Commercial lacquer-grade nitrocellulose solution (20 % solids): 25.00 %
Compatible lacquer resin solution (50 % solids): 10.00 %
Glycerol Triacetate E1518: 3.00 %
Triethyl citrate, illustrative comparison plasticiser: 6.00 %
Compatible lacquer solvent blend: 56.00 %
Total: 100.00 %
Keep the combined plasticiser fraction at 9.00 % for the four trials:
0 % triacetin + 9 % triethyl citrate
3 % triacetin + 6 % triethyl citrate
6 % triacetin + 3 % triethyl citrate
9 % triacetin + 0 % triethyl citrate
Each variant totals 100.00 % with the other components held constant. The resin and solvent blend must be selected for compatibility, these illustrative fractions do not define their chemical composition. Use commercially supplied nitrocellulose solution, do not dry nitrocellulose. Handle solvent-containing lacquers with suitable ventilation, ignition control and the precautions specified for the supplied raw materials.
INITIAL APPROACH:
Nitrocellulose solution: constant
Resin: constant
Glycerol Triacetate E1518: approx. 0, 3, 6 and 9 % of the formulation, partly replacing a conventional plasticizer
Solvents: constant
APPLICATION APPROACH:
Lacquers are prepared and applied on standard panels.
Drying time, gloss, hardness, flexibility and odor are compared.
Long-term film stability and plasticizer migration are evaluated.
GLYCEROL TRIACETATE E1518 SIMILAR PRODUCTS AND ALTERNATIVES
Glycerol Triacetate E1518 and diacetin/monoacetin: Partial acetates are more water-soluble and hydrolyze faster, they are used to speed up cure in foundry binders.
Glycerol Triacetate E1518 and triethyl citrate: Another biodegradable plasticizer, common in pharmaceutical coatings and food contact materials.
Glycerol Triacetate E1518 and propylene carbonate: Used as a faster ester hardener in foundry binders.
Glycerol Triacetate E1518 and phthalate or adipate plasticizers: Used in PVC and other plastics, but with different compatibility and regulatory profiles.
Glycerol Triacetate E1518 and triethylene glycol diacetate: An alternative filter tow plasticizer.
The choice depends on compatibility, cure speed, regulatory requirements and cost.
HOW DOES GLYCEROL TRIACETATE E1518 WORK AT THE MOLECULAR LEVEL?
Glycerol Triacetate E1518 is built on a three-carbon glycerol backbone in which every carbon bears an acetate ester group. Its systematic description, 1,2,3-triacetoxypropane, points to the three features that govern its behaviour: three ester carbonyls that give polarity, a small molecular size that allows easy movement between other molecules, and ester bonds that can be broken back into glycerol and acetic acid. Most of its functions can be traced to one of these three features.
Feature one – polar but not hydrogen-bond donating: The three carbonyl oxygens act as hydrogen-bond acceptors and create a moderate dipole across the molecule, while the absence of free hydroxyl groups prevents triacetin from forming the dense hydrogen-bond network typical of glycerol. As a result, the molecule sits between water and oil in polarity. It mixes well with alcohols and many organic solvents, dissolves only partly in water, and readily takes up semi-polar substances such as flavour esters, aldehydes, ketones and terpenes.
How this works in flavours and foods: In flavour preparations, glyceryl triacetate surrounds aroma molecules and keeps them in a stable liquid phase, reducing their tendency to separate or evaporate too early. When the flavour is added to a food, the carrier spreads into the matrix and releases the aroma compounds gradually. Its weak attraction to water also lets it retain a small amount of moisture, which helps soft products resist drying, although this effect is much milder than that of glycerol or sorbitol.
Feature two – small and mobile: Because the molecule is compact, it can diffuse into amorphous regions of polymers. There, its carbonyl groups interact with polar groups of the polymer, such as acetyl and hydroxyl groups in cellulose acetate or ester groups in coating polymers. These interactions loosen chain-to-chain contacts and increase free volume. The polymer becomes more flexible, its glass transition temperature decreases and films or fibres become less brittle.
How this works in fibres, gum bases and coatings: In cellulose acetate filter tow, the plasticiser softens fibre surfaces so that touching fibres fuse at their contact points and then harden as the plasticiser moves deeper into the fibres, producing a self-bonded porous structure. In chewing gum bases, Glycerol Triacetate E1518 softens the polymer phase and helps control chewing texture. In tablet and capsule coatings, it keeps polymer films flexible enough to avoid cracking during drying, handling and storage.
Feature three – hydrolysable ester bonds: Water can attack each ester carbonyl, and the reaction is catalysed by acids, alkalis and esterase or lipase enzymes. The molecule loses its acetate groups one at a time, forming diacetin, then monoacetin, and finally glycerol, with one acetic acid molecule released at each step. Under dry, neutral storage the reaction is slow, under humid, hot or strongly alkaline conditions it becomes significant.
How this works in reactive systems: In alkaline sodium silicate foundry binders, triacetin serves as an ester hardener. Its hydrolysis releases acetic acid, which lowers the pH of the silicate locally and triggers gel formation, binding sand grains into a rigid mould. On the skin, esterases can split the ester in the same way, and the released acetic acid lowers local pH, this is the basis of its traditional use in topical antifungal products.
How this works in the body: Digestive and tissue esterases convert ingested glycerol triacetate into glycerol and acetic acid. Glycerol is channelled into normal carbohydrate and fat metabolism, while acetate is activated to acetyl-CoA and oxidised for energy. Since both products occur naturally in the body and in food, safety evaluations of E1518 focus on these metabolites.
The balance between solvency, plasticisation and hydrolysis in any application depends on concentration, temperature, moisture, pH and the other components present. Glycerol Triacetate E1518 dosage and process conditions should therefore be confirmed through laboratory trials.
QUALITY CONTROL AND PURCHASING CRITERIA FOR GLYCEROL TRIACETATE E1518
RECOMMENDED INFORMATION TO REVIEW BEFORE PURCHASING:
Grade (technical, food, pharmaceutical)
Assay
Acidity
Water content
Color (APHA)
Refractive index and density
Heavy metals and arsenic (food and pharmaceutical grades)
Odor
Technical Data Sheet (TDS)
Safety Data Sheet (SDS)
Certificate of Analysis (COA)
Food additive or pharmacopoeial compliance statements
Batch number and production date
Packaging (drums, IBC, bulk) and net quantity
Shelf life and storage conditions
STORAGE AND HANDLING OF GLYCEROL TRIACETATE E1518
The glycerol triester should be stored in tightly closed containers in a cool, dry and well-ventilated place, preferably below about 30 °C, away from heat, sparks and direct sunlight.
Moisture should be kept out of the containers to prevent hydrolysis and increase in acidity. Suitable materials include stainless steel, lined steel and HDPE.
In unopened original packaging under recommended conditions, a shelf life of about 12 months or longer is commonly given, for the shelf life of the supplied grade, please contact Ataman Kimya.
Transport: Glycerol Triacetate E1518 is generally not classified as dangerous goods for transport.
Spills should be absorbed with inert material and collected for disposal, release to drains should be avoided.
SAFETY INFORMATION OF GLYCEROL TRIACETATE E1518
Hazard classification: Generally not classified as hazardous under GHS according to supplier safety data sheets.
Eyes: May cause mild irritation, rinse with water.
Skin: Low irritation potential, wash with soap and water after prolonged contact.
Inhalation: Low vapor pressure at room temperature, avoid inhaling mists or vapors from heated product.
Ingestion: Low toxicity, food-grade material is used as a food additive.
Fire: Combustible liquid with a flash point of about 138 °C. Use foam, dry chemical, carbon dioxide or water spray. Combustion produces carbon oxides and acetic acid vapors.
Personal protection: Safety glasses and chemical-resistant gloves (for example nitrile or butyl rubber) for industrial handling.
Environment: Readily biodegradable, avoid large releases into drains.
Waste: Dispose of according to local regulations.
WHAT SHOULD BE CONSIDERED WHEN BUYING GLYCEROL TRIACETATE E1518?
BEFORE PURCHASING, CLARIFY THE FOLLOWING:
Application (filter tow, foundry, plastics, coatings, food, pharmaceutical)
Required grade and compliance
Purity, acidity and water limits
Quantity and packaging
Documentation needs (TDS, SDS, COA, regulatory statements)
The price of Glycerol Triacetate E1518 depends on glycerol and acetic acid/acetic anhydride prices, energy, grade, order volume, packaging and logistics.
SUPPLY OF GLYCEROL TRIACETATE E1518 FROM ATAMAN KIMYA
Triacetin is a versatile acetate ester used in filter tow, foundries, plastics, coatings, food and pharmaceuticals. Ataman Kimya can provide information on available grades, specifications, packaging and price quotations.
Current stock, origin and specification details should be confirmed with Ataman Kimya before ordering.
INFORMATION THAT HELPS PREPARE A QUOTATION:
Application and target market
Required grade and specification
Estimated quantity
Packaging preference
Required documents
FREQUENTLY ASKED QUESTIONS ABOUT GLYCEROL TRIACETATE E1518
WHAT IS GLYCEROL TRIACETATE E1518?
Glyceryl triacetate is the triester of glycerol and acetic acid, also called triacetin, used as a plasticizer, solvent, foundry binder hardener and food additive.
ARE GLYCEROL TRIACETATE, GLYCERYL TRIACETATE AND TRIACETIN THE SAME?
Yes. They are different names for the same substance, CAS 102-76-1.
WHAT IS THE CAS NUMBER OF GLYCEROL TRIACETATE E1518?
102-76-1.
WHAT IS THE EC NUMBER OF GLYCEROL TRIACETATE E1518?
203-051-9.
WHAT IS THE FORMULA OF GLYCEROL TRIACETATE E1518?
C9H14O6, molecular weight 218.20 g/mol.
WHY IS GLYCEROL TRIACETATE E1518 USED IN CIGARETTE FILTERS?
It plasticizes and bonds cellulose acetate fibers, giving the filter its firmness.
HOW DOES GLYCEROL TRIACETATE E1518 HARDEN FOUNDRY SAND?
It hydrolyzes in the alkaline binder, releases acetic acid, lowers the pH and causes the silicate or resin binder to gel.
IS GLYCEROL TRIACETATE E1518 SOLUBLE IN WATER?
It is moderately soluble, about 61 g/L at 20 °C, and miscible with ethanol and many organic solvents.
WHAT IS THE BOILING POINT OF GLYCEROL TRIACETATE E1518?
About 258–259 °C.
WHAT IS THE FLASH POINT OF GLYCEROL TRIACETATE E1518?
About 138 °C.
IS GLYCEROL TRIACETATE E1518 HAZARDOUS?
It is generally not classified as hazardous under GHS.
IS GLYCEROL TRIACETATE E1518 BIODEGRADABLE?
Yes, it is readily biodegradable.
IS GLYCEROL TRIACETATE E1518 A FOOD ADDITIVE?
Yes, food-grade material is the food additive E1518.
WHAT ARE ALTERNATIVES TO GLYCEROL TRIACETATE E1518?
Diacetin, triethyl citrate, propylene carbonate, triethylene glycol diacetate and other plasticizers or ester hardeners.
HOW SHOULD GLYCEROL TRIACETATE E1518 BE STORED?
In tightly closed containers in a cool, dry place below about 30 °C, protected from moisture.
GLYCEROL TRIACETATE E1518 – TECHNICAL SUMMARY
Glycerol Triacetate E1518 (triacetin, CAS 102-76-1, EC 203-051-9, C9H14O6, 218.20 g/mol) is a clear, colorless liquid with a boiling point of about 258–259 °C, a flash point of about 138 °C, a density of about 1.155 g/cm³ and moderate water solubility.
It is the main plasticizer for cellulose acetate filter tow, an important ester hardener for foundry binders and a low-toxicity plasticizer, solvent and coalescing agent in plastics, coatings, inks and adhesives.
In food and pharmaceutical grades, it is used as the food additive E1518 and as the pharmaceutical excipient triacetin.
It is generally not classified as hazardous and is readily biodegradable, but water and acidity must be controlled to avoid hydrolysis.
Companies planning to source Glycerol Triacetate E1518 through Ataman Kimya are advised to share their application, grade, specification, quantity and documentation needs.
Glycerol Triacetate E1518 can be sourced from ATAMAN KİMYA. For further information and supply inquiries about Glycerol Triacetate E1518, please contact ATAMAN KİMYA.
