Triacetin

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Structural formula
Structural formula of triacetin
General
Surname Triacetin
other names
  • Glycerol triacetate
  • 1,2,3-propanetriol triacetate
  • Triacetyl glycerin
  • 1,2,3-triacetoxypropane
  • Triacetic acid glycerol ester
  • E  1518
  • TRIACETIN ( INCI )
Molecular formula C 9 H 14 O 6
Brief description

colorless liquid

External identifiers / databases
CAS number 102-76-1
EC number 203-051-9
ECHA InfoCard 100.002.775
PubChem 5541
Wikidata Q83253
properties
Molar mass 218,21 g · mol -1
Physical state

liquid

density

1.16 g cm −3 (20 ° C)

Melting point

−78 ° C 

boiling point

258 ° C

Vapor pressure

<0.1 Pa (20 ° C)

solubility

slightly soluble in water: 64 g l −1 (20 ° C) 

safety instructions
GHS labeling of hazardous substances
no GHS pictograms
H and P phrases H: no H-phrases
P: no P-phrases
Toxicological data

3000 mg kg −1 ( LD 50 ,  rat ,  oral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Triacetin ( glycerin triacetate ) is an ester of the triol glycerin and acetic acid .

Extraction and presentation

It is synthesized from glycerin and acetic acid.

properties

Triacetin is a colorless, oily to rancid smelling liquid. It can be mixed with ethanol, diethyl ether and chloroform, but not with aliphatic hydrocarbons and natural or mineral oils. It is also somewhat soluble in water. The flash point is 138 ° C, the ignition temperature 430 ° C.

use

It is used as a plasticizer for paints and adhesives, as an additive for special hardeners or as an adhesive for the production of cigarette filters based on cellulose acetate .

In the food industry, it is used as a plasticizer for chewing gum or as a flavor carrier . It has an antimicrobial effect and is used as an emollient and, due to its hygroscopic effect, also as a humectant .

In the EU, it is only approved as a food additive for chewing gum and flavorings and has the designation E 1518 .

Individual evidence

  1. ↑ Entry on E 1518: Glyceryl triacetate (triacetin) in the European database for food additives, accessed on August 11, 2020.
  2. ↑ Entry on TRIACETIN in the CosIng database of the EU Commission, accessed on February 16, 2020.
  3. ↑ a b c d e f g h i Entry on glycerol triacetate in the GESTIS substance database of the IFA , accessed on December 20, 2019(JavaScript required) .
  4. ^ Entry on triacetin at TCI Europe, accessed on June 27, 2011.
  5. ↑ a b entry on triacetin. In: Römpp Online . Georg Thieme Verlag, accessed on October 5, 2006.