Benzoic anhydride

Benzoic anhydride is the organic compound with the formula (C6H5CO)2O.

It is the acid anhydride of benzoic acid and the simplest symmetrical aromatic acid anhydride.

It is usually prepared by the dehydration reaction of benzoic acid, e.g. using acetic anhydride:[3] Alternatively, sodium benzoate can be treated with benzoyl chloride.

It can be produced by dehydrating benzoic acid by heating.

[citation needed] Benzoic anhydride provides a convenient way to prepare benzoic esters:

NFPA 704 four-colored diamond Health 1: Exposure would cause irritation but only minor residual injury. E.g. turpentine Flammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuel Instability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calcium Special hazards (white): no code