... :68% 4.Food or Tech Grade 5.Capacity:3000MT/Year Sodium Hexametaphosphate 1.InforChemical formula: (NaPO3)6Molecular weight: 611.17Property: White powderSpecific ... not in organic solvent.A fine soft water agent. 2.Specification Total phosphate, as P2O5 ,%≥68.0Inactive phosphate, as P2O5, %≤7 ... PP/PET package or as per the buyer's requests. sodium hexametaphosphate