Hazard Predictions

• [B5] Combination liberates gaseous products, at least one of which is flammable. May cause pressurization.
• [C] Exothermic reaction. May generate heat and/or cause pressurization.

Acetic anhydride reacts exothermically with alcohols to form esters (Wagner, F.S. 2005. Acetic Anhydride. In Kirk-Othmer Encyclopedia of Chemical Technology. John Wiley & Sons, Inc.); reactions with glycerol catalyzed by phosphoryl chloride (Bellis, M.P. 1949. Hexagon Alpha Chi Sigma (Indianapolis) 40(10):40.) or with ethanol, catalyzed by NaHSO4, are notably violent; the latter may evolve flammable vapors that can be ignited by reaction heat (Staudinger, H. 1922. Agnew. Chem. 35:657).

Potential Gas Byproducts

• Hydrogen (H2)

Reactions with glycerol catalyzed by phosphoryl chloride (Bellis, M.P. 1949. Hexagon Alpha Chi Sigma (Indianapolis) 40(10):40.) or with ethanol catalyzed by NaHSO4 are notably violent; the latter may evolve flammable vapors that can be ignited by reaction heat (Staudinger, H. 1922. Agnew. Chem. 35:657.).