Uses of Benzoic Acid - carboxylic acids
(i) Benzoic acid is used in medicine in the form of its salts particularly as urinary antiseptic.
(ii) Benzoic acid is used as sodium benzoate for preservation of food like fruit juices, tomato ketchup, pickles etc.
(iii) Benzoic acid is utilized in the preparation of aniline blue.
(iv) Benzoic acid is utilized in treatment of skin diseases like eczema.