... agent, 2.also widely used in gum synthesis STPP Chemical name:Sodium tripolyphosphate Chemical formula: Na5P3O10 Molecular weight: 367.861 ... softener, leather pre-tanning agent, dye auxiliary agent, and dispersant of suspension such as paint, kaolin, magnesium ... calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyzer, and used in epuration of petroleum product ...