Tags: Chemical Compound, Chemical Substance.
Formic anhydride also called methanoic anhydride is a chemical compound with formula C2H2O3 or (H(C=O)-)2O. It can be viewed as the anhydride of formic acid (HCOOH). Formic anhydride is a liquid with boiling point 24 °C at 20 mmHg. It is stable in diethyl ether solution. It can be isolated by low-temperature low-pressure distillation but decomposes on heating above room temperature. It decomposes into formic acid and carbon monoxide.
