Benzoic acid

Synonyms: Benzene carboxylic acid

Benzoic acid consists of a benzene ring and a carboxylic acid group. Benzoic acid is used as a preservative (E 210) in foods as marmelade and juices. In the liver the compound is metabolized into hippuric acid. Benzoic acid is found in many plants e.g. strawberries and cranberries. The salts of benzoic acid is named benzoates.

MW= 122,13 g/mol; MP= 122,4 ^o C; BP= 2419 ^o C; bruttoformula: C₇H₆O₂; CAS-number: 65-85-0; pKa= 4,19