Acetonitrile

Ethanenitrile, methyl cyanide; CH₃CN = 41.05 (75-05-8)

Clear, colourless liquid, miscible with water, with acetone and with methanol.

, about 0.78; , about 1.344. A 100 g/L solution is neutral to litmus paper.

Distillation range (2.2.11) Not less than 95% distils between 80° and 82°.

Acetonitrile used in spectrophotometry complies with the following additional test.

Absorbance (2.2.25) Maximum 0.01 from 255 nm to 420 nm, determined using water as compensation liquid.