... Packing: 25kg net pp bag ISO 9001:2008, SGS approved Sodium HexametaphosphateChemical formula : (NaPO3)6Molecular weight: 611.82Properties:White powder; Density ... ; In food industry it used as an additive, nourishing agent, quality improver, pH regulator, metal ions chelating agent, adhesive and leavening ... 10 Water Insoluble matter % ≤0.050.05 11Polymerization9-219-21 Sodium Hexametaphosphate 68%