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A hygroscopic liquid composed of a mixture of isomers of glycerol diacetate. Diacetin has been used as a plasticizer in glyptal resins and shellac.

Synonyms and Related Terms

glyceryl diacetate; glycerol diacetate; glycerine diacetate; 1,2,3-propanetriol diacetate

Chemical structure


Other Properties

Miscible with water, benzene and ethanol.

Composition C7H12O5
CAS 25395-31-7
Melting Point -30
Density 1.184
Molecular Weight mol. wt. = 176.17
Refractive Index 1.44
Boiling Point 259

Hazards and Safety

Combustible. Hygroscopic. Contact may cause irritation.

Fisher Scientific: MSDS

Sources Checked for Data in Record

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 3005; bp = 259 C
  • MSDS Sheet Comment: Fisher Scientific: bp = 280 C

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