... agent, 2.also widely used in gum synthesis STPP Chemical name:Sodium tripolyphosphate Chemical formula: Na5P3O10 Molecular weight: 367.861 ... on Na5P3O10),%94MIN902Phosphorus pentoxide,%57MIN56.53Insoluble substance in water,%0.04MAX0.084Iron content,%0.006MAX0.0075Whiteness,% ... main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, and ...