Butyric anhydride or butanoic anhydride is the chemical compound with the formula (CH3CH2CH2CO)2O. The molecule can be described as a condensation of two molecules of butyric acid with elimination of one water molecule (hence its name).
|Preferred IUPAC name
Butanoic acid anhydride
Butyric acid anhydride
3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||158.197 g·mol−1|
|Melting point||−75 °C (−103 °F; 198 K)|
|Boiling point||198 °C (388 °F; 471 K)|
Refractive index (nD)
|Safety data sheet (SDS)|||
Related acid anhydrides
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Butyric anhydride is a clear colorless liquid that smells strongly of butyric acid, which is formed by its reaction to moisture in the air.
Butyric anhydride is a combustible, corrosive liquid. It is considered water sensitive.
- ^ "MSDS Information". Butyric Anhydride MSDS. Retrieved 2011-01-07.