... with the 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, polygon ... Brines, in the Seafood and Meat industry, Slurries. STPP 94%