Food sourness agent, it plays an important role in bacteriostasis and preservative; Acidity regulator, acidifier, anti-thermal oxidation agent, salting promoter, spice. When used as acid substance of gas producing agent of solid beverage, the bubbles are durable and delicate; Fine chemical intermediates such as pharmaceutical and optical bleach. It is used for the production of the antidotes sodium dimercaptosuccinate and the drugs for the treatment of small red blood cell anemia. Also used in the production of unsaturated polyester resin (refer to relevant literature)
