DISODIUM HYDROGEN PHOSPHATE 1.BASSIC INFORMATION A lias: DSP Formula : Na2HPO4�·12H20 Molecular weight: 358.14 CAS NO. : 10039-32-4 HS Code: 28352200 EINECS: 231-448-7 2.PROPERTIES Appearance: White powder, flake or granular crystal Type: Industrial Grade Density: 1.52 g/cm3 Melting point: 34.6C Solubility: Soluble in water, its aqueous solution is alkaline. >=10 g/100 mL (20C). Characteristics: It is easy to weather in the air and then lose five molecules of crystal water to form Na2HPO4�·7H20. At 100 �°C, the crystal water is lost to form anhydrous substance and it breaks down into TSPP at 250 �°C. 3.APPLICATIONS It is used as a fire retardant for fabric, wood and paper, boiler water softener, food additive, buffer, solder, tanning agent, etc.