Ester are the derivatives of carboxylic acids which contain—COOR group. The OH group in an acid is replaced by —O— alkyl or aryl group to from an ester. Esters are represented by the formula R1COOR2 where R1 and R2 represent an alkyl or aryl group.
Preparation of esters : When carboxylic acids are heated with alcohols in the presence of an acid catalyst, esters are produced.
Uses of esters :
(i) Esters are used in food as flavours and fragrances.
(ii) In making of soaps
(iii) Esters are used as solvents
(iv) Esters are used in medicines.
(v) Esters are used as emulsifying agents
