... wash, soap synergistic agent, water softener, etc. Specification:NA5P3O10P2O5INSOLUBLE IN WATERPH 1% AQUEOUS SOLUTIONLOSS ON IGNITION @ 140’CPASSING THROUGH ... luster, melting point at 622°c, easily soluble in water, with remarkable chelating ability to some metal ions ... agent for paper making, organic synthesis catalyzer, and used in epuration of petroleum product, gum latex storage, as dispersant, ...