Application: The pharmaceutical industry is used to produce chloroform, phenylsulfone and benzaldehyde. The rubber industry is used as a coagulant. The printing and dyeing industry is used as the dechlorination agent for cotton bleaching, and cotton as the auxiliary agent; Leather processing is used for leather processing, which can make leather soft, plump and tough. It has the properties of waterproof, anti-folding and wear-resisting. Chemical industry is used to produce hydroxyl vanillin, hydroxylamine hydrochloride, etc. Photosensitive industry used as a developer; The food industry is used for bleaching agents, preservatives, loose agents, antioxidants, colorants and preservatives.

 Food grade sodium pyrosulphate can be used in food processing to improve the taste of food. The main uses are as follows:
1. Bleach is used to make bleaching of the flour, such as pastries, and other foods.
2, the puffing agent can make the bread and biscuits and other food structure become loose, and the taste is crisp.
3. The preservative can be added to the fruit juice, candied fruit and canned food to prolong the shelf life of the food, and to carry out effective sterilization.
4. Antioxygen preservatives have good antioxidation and preservative effects on seafood and fruits and vegetables.