ISOAMYL BUTYRATE

Ester is made from the reaction between acid and alcohol. Most of the Esters have fragrance, so does the isoamyl butyrate. Isoamyl butyrate is a kind of liquid, colourless or pale yellow, have a strong pear and banana smell. Isoamyl butyrate almost insoluble in water , glycerin and propylene glycol, but soluble in ethanol and ether. It has irritate to the skin.
But do you know how isoamyl butyrate produced. Isoamyl butyrate by butyric acid and isoamyl alcohol in concentrated sulfuric acid or Twitchell reagent occurs the presence of esterification obtained. It also can be mixed by acid, isoamyl alcohol and heteropoly acid and benzene. Then make the mixtures wash. vacuum distillation and other steps to extract of isoamyl butyrate. This is the equation: CH 3 CH 2 CH 2 COOH + (CH 3 ) 2 CHCH 2 CH 2 OH → CH 3 CH 2 CH 2 COOCH 2 CH 2 CH (CH 3 ) 2 + H 2 O.
Isoamyl butyrate is the provision allowing the use of spices, commonly used in the modulation of apples, bananas and other fruit flavor food flavor and rum flavoring, 96 GB 2760 provides for the use of a Food SPICE. Mainly for the preparation of Banana, Pineapple, APRICOT, Cherry and Mixed Fruit flavor.