Sodium Benzoate is a preservative.As a food additive,sodium benzoate has the E number E211.It is bacteriostatic and fungistatic under acidic condition. It is most widely used in acidic foods such as salad dressings (vinegar), carbonated drinks (carbonic acid), jams and fruit juices (citric acid), pickles (vinegar), and condiments. It is also used as a preservative in medicines and cosmetics.Sodium benzoate is also used in fireworks as a fuel in whistle mix, a powder that emits a whistling noise when compressed into a tube and ignited.
7/1, Lords Building, Room No. 506, Lord Sinha Road, Kolkata, West Bengal, 700071, India