Molecular formula: NH4H2PO4 Molecular weight: 115.0 Standard executed: Q/74465717-9.1-2005(technical grade) Q/74465717-9.2-2005(food grade) CAS Number: 7722-76-1 Properties: White granular crystal; relative density at 1.803g/cm3, melting point at 190, easily soluble in water, slightly soluble in alcohol, insoluble in ketone, PH value of 1% solution is 4.5. Uses: As a fire-prevention agent for fabric, timber and paper, as well as a fire-prevention coating, and dry powder for fire extinguisher. For food grade it is mainly used as a fermentation agent, nourishment, and so on. Used as a high effective non-chloride N, P compound fertilizer in agriculture. Its total nourishment (N+P2O5) is at 73%, and may be used as a basic raw material for N, P and K compound fertilizer. Packing and storage: In 25kg, 50kg, 1000kg net bag, store at a cool, dry and well ventilated place.