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Chemical structure


A colorless, oily liquid. Triacetin is used as a solvent in the manufacture of Celluloid, photographic films, basic dyes, and tannins. It is also used as a plasticizers for acetate fibers.

Synonyms and Related Terms

glycerol triacetate; 1,2,3-propanetriol triacetate; triacetyl glycerine; 1,2,3-propanetriol


  • Combustible. Flash point = 138 C
  • ThermoFisher: SDS

Physical and Chemical Properties

Soluble in ethanol, ether. Slightly soluble in water.

Composition C3H5(OCOCH3)3
CAS 102-76-1
Melting Point 258-260 C
Density 1.160 g/ml
Molecular Weight mol. wt.=218.20
Refractive Index 1.4312

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 8
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Hoechst Celanese Corporation, Dictionary of Fiber & Textile Technology (older version called Man-made Fiber and Textile Dictionary, 1965), Hoechst Celanese Corporation, Charlotte NC, 1990
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 9721