acetyl value

a·ce·tyl val·ue

the milligrams of potassium hydroxide required to neutralize the acetic acid produced by the hydrolysis of 1 g of acetylated fat; a measure of the hydroxy acids present in glycerides; notably high in castor oil.

acetyl value

A crude laboratory value for the amount of hydroxy acids present in glycerides, based on the milligrams of potassium hydroxide needed to neutralise the acetic acid produced from the hydrolysis of 1 gram of acetylated fat.