STPP, Sodium Tripolyphosphate good quality, widely used in detergent, good performence STPP Sodium TripolyphosphateNa5P3O10,% ,Min.94P2O5,% ,Min.57Insolubles, % Max.0. ... kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyzer, and used in epuration ... gum synthesis, foodstuff industry, and poultry process. STPP sodium tripolyphosphate