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E1518 Glycerol Triacetate is a colorless, viscous, odorless liquid used primarily as a food humectant, solvent, and plasticizer.
E1518 Glycerol Triacetate maintains moisture in baked goods and chewing gum, acts as a flavoring carrier, and is a key plasticizer in cigarette filters.
Generally considered safe, E1518 Glycerol Triacetate is plant-based, vegan-friendly, and approved in the EU and Australia.
CAS: 102-76-1
MF: C9H14O6
MW: 218.2
EINECS: 203-051-9
Synonyms
TRIACETIN;TRIACETIN (C2:0);Triacetyl glycerin;GLYCERIN TRIACETATE;1,3-Diacetyloxypropan-2-yl acetate;propane-1,2,3-triyl triethanoate;Glyceryl triacetate,1,2,3-Triacetoxypropane, 1,2,3-Triacetylglycerol, Glycerol triacetate, Triacetin;Triacetin, 99%, extra pure, Ph Eur, USP, BP
E1518 Glycerol Triacetate is the organic compound with the formula C3H5(OCOCH3)3.
E1518 Glycerol Triacetate is classified as a triglyceride, i.e., the triester of glycerol with acetic acid.
E1518 Glycerol Triacetate is a colorless, viscous, and odorless liquid with a high boiling point and a low melting point.
E1518 Glycerol Triacetate has a mild, sweet taste in concentrations lower than 500 ppm, but may appear bitter at higher concentrations.
E1518 Glycerol Triacetate is one of the glycerine acetate compounds.
E1518 Glycerol Triacetate, also known as 1,2,3-propanetriol triacetate or glyceryl triacetate, is the triester of glycerin and acetic acid.
E1518 Glycerol Triacetate can be prepared by heating glycerin with acetic anhydride alone or in the presence of finely divided potassium hydrogen sulfate.
E1518 Glycerol Triacetate can also be prepared by the reaction of oxygen with a liquid-phase mixture of allyl acetate and acetic acid using a bromide salt as a catalyst.
E1518 Glycerol Triacetate is the triester of glycerol and acetic acid.
E1518 Glycerol Triacetate is a colorless, odorless, and viscous liquid with excellent solvent properties and low toxicity, making it widely applicable in food, pharmaceuticals, and cosmetics.
E1518 Glycerol Triacetate Chemical Properties
Melting point: 3 °C(lit.)
Boiling point: 258-260 °C(lit.)
density: 1.16 g/mL at 25 °C(lit.)
vapor density: 7.52 (vs air)
vapor pressure: 0.00248 mm Hg @ 250C
refractive index: n25/D 1.429-1.431(lit.)
FEMA: 2007 | (TRI-)ACETIN
Fp: 300 °F
storage temp.: Sealed in dry,Room Temperature
solubility: Soluble in water, miscible with ethanol (96 per cent) and toluene.
form: Liquid
color: Clear colorless
PH: 5.0-6.0 (20°C, 50g/L in H2O)
Odor: Characteristic odour
explosive limit: 1.05%, 189°F
biological source: synthetic
Odor Type: fruity
Water Solubility: 64.0 g/L (20 ºC)
Merck: 14,9589
JECFA Number: 920
BRN: 1792353
Henry's Law Constant: 8.0×102 mol/(m3Pa) at 25℃, Duchowicz et al. (2020)
Dielectric constant: 7.2（20℃）
Stability: Stable. Incompatible with strong oxidizing agents. Combustible.
Major Application: flavors and fragrances
Cosmetics Ingredients Functions: PLASTICISER SOLVENT FILM FORMING FRAGRANCE ANTIMICROBIAL
InChI: 1S/C9H14O6/c1-6(10)13-4-9(15-8(3)12)5-14-7(2)11/h9H,4-5H2,1-3H3
InChIKey: URAYPUMNDPQOKB-UHFFFAOYSA-N
LogP: 0.25
CAS DataBase Reference: 102-76-1(CAS DataBase Reference)
NIST Chemistry Reference: E1518 Glycerol Triacetate(102-76-1)
EPA Substance Registry System: E1518 Glycerol Triacetate (102-76-1)
Colorless, odorless oily liquid.
E1518 Glycerol Triacetate is miscible with ethanol, ether, benzene, chloroform and other organic solvents, soluble in acetone, insoluble in mineral oil.
Slightly soluble in water. 25 ° C in water solubility of 5.9g / 100ml.
Uses
As a plasticizer and fragrance fixative, ink solvent, also used in medicine and dye synthesis.
As a chromatographic fixative, solvent, toughener and fragrance fixative.
Humectants; carrier solvents; plasticizers; E1518 Glycerol Triacetate can absorb carbon dioxide from the natural gas.
In the production of cosmetics, pharmaceuticals and dyes, plasticizers for cigarette filter rods, and so on.
Applied in cosmetics, casting, medicine, dyes and other industries.
E1518 Glycerol Triacetate is non-toxic, non-irritating.
As the substrate for the determination of lipase, perfume fixative, solvent, gas chromatographic fixative (maximum temperature of 85 ℃, solvent: methanol, chloroform), separation of gas and aldehyde analysis.
E1518 Glycerol Triacetate is a colorless, oily liquid of slight fatty odor and bitter taste.
E1518 Glycerol Triacetate is soluble with water and is miscible with alcohol and ether.
E1518 Glycerol Triacetate functions in foods as a humectant and solvent.
As fixative in perfumery; solvent in manufacture of celluloid, photographic films.
Technical triacetin (a mixture of mono-, di-, and small quantities of triacetin) as a solvent for basic dyes, particularly indulines, and tannin in dyeing.
Production
E1518 Glycerol Triacetate can be derived from the esterification of glycerol and acetic acid.
After preheating glycerol to 50-60 ° C, add acetic acid, benzene and sulfuric acid.
Heat and stir for refluxing dehydration, and recycle the benzene.
Then add acetic anhydride for heating of 4h.
After cooling, the mixture was neutralized with 5% sodium carbonate to pH 7, and the crude layer was dried and the crude oil was dried with calcium chloride.
Distill under reduced pressure, collect the 128-131 ° C (0.93 kPa) fraction, namely glycerol triacetate.
Manufacturing Process
200 grams of allyl acetate, 450 grams of glacial acetic acid and 3.71 grams of cobaltous bromide were charged to the reactor and the mixture was heated to 100°C.
Pure oxygen was then introduced into the reactor below the surface of the liquid reaction mixture at the rate of 0.5 standard cubic feet per hour.
Initially, all of the oxygen was consumed, but after a period of time oxygen introduced into the mixture passed through unchanged.
During the course of the reaction, a small quantity of gaseous hydrogen bromide (a total of 1.9 grams) was introduced into the reaction zone, along with the oxygen.
The reaction was allowed to continue for 6 hours following which the reaction mixture was distilled.
Essentially complete conversion of the allyl acetate took place.
A yield of 116 grams of E1518 Glycerol Triacetate was obtained, this being accomplished by distilling the glycerol triacetate overhead from the reaction mixture, at an absolute pressure of approximately 13 mm of mercury.
