Triacetin

Triacetin
Names
	Systematic IUPAC name Propane-1,2,3-triyl triacetate
	Other names Glycerol triacetate; glycerin triacetate; 1,2,3-triacetylglycerol; 1,2,3-triacetoxypropane;
Identifiers
CAS Number	102-76-1 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:9661 ;
ChEMBL	ChEMBL1489254 ;
ChemSpider	13835706 ;
ECHA InfoCard	100.002.775
EC Number	203-051-9;
E number	E1518 (additional chemicals)
KEGG	D00384 ;
PubChem CID	5541;
RTECS number	AK3675000;
UNII	XHX3C3X673 ;
CompTox Dashboard (EPA)	DTXSID3026691 ;
	InChI InChI=1S/C9H14O6/c1-6(10)13-4-9(15-8(3)12)5-14-7(2)11/h9H,4-5H2,1-3H3 Key: URAYPUMNDPQOKB-UHFFFAOYSA-N ; InChI=1/C9H14O6/c1-6(10)13-4-9(15-8(3)12)5-14-7(2)11/h9H,4-5H2,1-3H3 Key: URAYPUMNDPQOKB-UHFFFAOYAH;
	SMILES CC(=O)OC(COC(=O)C)COC(C)=O;
Properties
Chemical formula	C9H14O6
Molar mass	218.205 g·mol−1
Appearance	Oily liquid
Density	1.155 g/cm3
Melting point	−78 °C (−108 °F; 195 K)
Boiling point	259 °C (498 °F; 532 K)
Solubility in water	6.1 g/100 mL
Solubility in ethanol	Miscible
Solubility in benzene	soluble
Solubility in diethyl ether	soluble
Solubility in acetone	very soluble
Vapor pressure	1 Pa (0.0075 mmHg) (37.6 °C (99.7 °F; 310.8 K)); 10 Pa (0.075 mmHg) (62 °C (144 °F; 335 K)); 100 Pa (0.75 mmHg) (90 °C (194 °F; 363 K)); 1 kPa (7.5 mmHg) (124 °C (255 °F; 397 K)); 10 kPa (75 mmHg) (165 °C (329 °F; 438 K)); 100 kPa (750 mmHg) (214 °C (417 °F; 487 K));
Refractive index (nD)	1.4301 (20 °C (68 °F; 293 K))
Viscosity	23 mPas (20 °C (68 °F; 293 K))
Thermochemistry
Heat capacity (C)	389 J⋅mol−1·K-1
Std molar; entropy (S⦵298)	458.3 kJ⋅mol−1·K-1
Std enthalpy of; formation (ΔfH⦵298)	−1330.8 kJ⋅mol−1
Std enthalpy of; combustion (ΔcH⦵298)	4211.6 kJ⋅mol−1
Enthalpy of vaporization (ΔfHvap)	85.74 kJ⋅mol−1
Hazards
NFPA 704 (fire diamond)	0 1 0
Flash point	138 °C (280 °F; 411 K)
Autoignition; temperature	430 °C (806 °F; 703 K)
Explosive limits	7.73%-?
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	3 g/kg (rat, oral)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Triacetin is the organic compound with the formula C₃H₅(OCOCH₃)₃. It is classified as a triglyceride, i.e., the triester of glycerol with acetic acid. It is a colorless, viscous, and odorless liquid with a high boiling point and a low melting point. It has a mild, sweet taste in concentrations lower than 500 ppm, but may appear bitter at higher concentrations. It is one of the glycerine acetate compounds.