... :15 TON. Product Information :stpp manufacturer 1.Sodium Tripolyphosphate (STPP) specification:Synonyms: triphosphoric acid pentasodium ... salt, pentasodium triphosphate, tripolyphosphate pentasodium, sodium triphosphate, STPP, armofos, empiphos stp-D, freez-gard FP ... 4.Application: builder in laundry powder, sequestrant, chelating agent,Detergent,Detergents & Dishwashing Tablets,( liquid ) Cleaners, ...