What Is the Reaction Between Acetic Anhydride and Water?
The reaction between acetic anhydride and water is written as follows: (CH3CO)2O + H2O --> 2CH3COOH. This reaction produces two molecules of etanoic acid, a compound that appears as a colorless liquid. Acetic anhydride is highly reactive to water, and this reaction becomes especially dangerous when mineral acids, such as nitric or sulphuric acid, are present. Acetic anhydride also produces violent reactions when mixed with boric acid, ethanol and methanol.