... perfect packing; 3. regularly suppliable Sodium Tripolyphosphate (STPP) specification:Synonyms: triphosphoric acid pentasodium salt, pentasodium ... triphosphate, tripolyphosphate pentasodium, sodium triphosphate, STPP, armofos, empiphos stp-D, freez-gard FP 19 ... Tablets,( liquid ) Cleaners, Food & Feed industry, in Brines, in the Seafood and Meat industry, Slurries. STPP 94%