... as main auxiliary of synthetic wash, soap synergistic agent, water softener, etc. STPP Sodium Tripolyphosphate Na5P3O10,% ,Min.94P2O5,% ,Min.57Insolubles ... main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, ... , calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyzer, and used in epuration of ...