SODIUM HEXAMETAPHOSPHATE Formula: (NaPO3)6 MW: 611.17 No. of Standard: HG/T2519-1993 Specifications: Total phosphates (as P2O5) 68%min. Iron (Fe) 0.05%max. Water insoluble 0.06%max. Inactive 7.5%max PH value 5.8-6.0 Property: white powder specific gravity is 2.484 at 20℃. Melting point is 616℃, soluble in water easily but not in organic solvent, a fine soft water agent. Usage: Mainly used as bonding agent, floatation agent, dispersant, softener of boiler-water & industry-use water, water-treatment agent of cooling circular water and as quality improver in food industry. Packing: In 25kg woven bag inner plastic bag.