STPP, Sodium Tripolyphosphate Used as main auxiliary of synthetic wash, soap synergistic agent, water softener, etc. Specification:NA5P3O10P2O5INSOLUBLE IN WATERPH 1% AQUEOUS SOLUTIONLOSS ON IGNITION @ 140’CPASSING THROUGH US 20 SIEVIRON CONTENT(PPM)BULK DENSITY(G/CM3)PHASE IWHITENESS94% MIN57% MIN0.1 MAX9.5—10.00.18 MAX95% MIN50 MAX0.70-0.9020-40%90% MINProperties:White microdot powder with ...