... the equality and mutual benefit. Sodium Tripolyphosphate (STPP) specification:Synonyms: triphosphoric acid pentasodium salt, pentasodium triphosphate, tripolyphosphate pentasodium, sodium triphosphate, STPP, armofos, empiphos stp-D, ... powder, sequestrant, chelating agent,Detergent,Detergents & Dishwashing Tablets,( liquid ) Cleaners, Food & Feed industry, in Brines, in the Seafood and Meat industry ...