... as main auxiliary of synthetic wash, soap synergistic agent, water softener, etc. STPP Sodium Tripolyphosphate Na5P3O10,% ,Min.94P2O5,% , ... main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, ... dyeing, petrochemical, leather and building material etc. as water softener, flotation agent,dispersant, high temperature binding agent and ...