Sodium Tripolyphosphate

Sodium Tripolyphosphate (STPP) Synonyms: triphosphoric acid pentasodium salt, pentasodium triphosphate, tripolyphosphate pentasodium, sodium triphosphate, STPP, armofos, empiphos stp-D, freez-gard FP 19, polygon, rhodiaphos H5, thermphos, tripoly Molecular formula: Na5P3O10 Specifications:INDEXSPECIFICATIONRESULTASSAY (NA5P3O10) 94% MIN 94.2% MIN P2O5 57% MIN 57.61% MIN FE 0.007% 0.007% WATER INSOLUBLE MATTER 0.1% MAX 0.1% MAX ARSENIC(AS) 0.0005% MAX 0.0004% MAX PH(1% WATER SOLUTION) 9.2-10.0 9.5 WHITENESS 90 92 IGNITION LOSS 1.0 1.0 DENSITY(G/CM3) 0.35-0.9 0.8 PHASE L 10-30 26.3