Disodium hydrogen phosphate can be used as water softener, fabric weighting agent, fire retardant, and used in glaze, welding flux, medicine, pigment, food industry and preparation of other phosphates. Emulsifier quality improver, nutrition enhancer, fermentation aid, chelating agent and stabilizer. Used as boiler water softener, flame retardant for fabric, wood and paper, glaze and soldering flux. Used in the production of detergents, cleaning agents for printing plates and Chemicalbook mordants for dyeing. In the printing and dyeing industry, it is used as a stabilizer for hydrogen peroxide bleaching and a filler for rayon (to enhance the strength and elasticity of silk). It is a raw material for manufacturing sodium pyrophosphate and other phosphates, and also a culture medium for monosodium glutamate, erythromycin, penicillin, streptomycin and sewage production products. It is also used for electroplating and leather polishing. As a quality improver, PH regulator and nutritional enhancer in food industry,