Na2HPO4
Disodium hydrogen phosphate, white crystal, easily soluble in water but insoluble in alcohol. Used to make citric acid, water softener, fabric weighting agent, fire retardant, and used in glaze, welding flux, medicine, pigment, food industry and other phosphates for industrial water treatment agent, printing and dyeing detergent, quality improvement Agent, neutralizing agent, antibiotic culture agent, biochemical treatment agent, food quality improver.