... ,High quality and competitive price 4,Quickly delivery Product DescriptionProduct: Sodium Tripolyphosphate (STPP)CAS No.: 7758-29-4 Molecular Formula: Na5P3O10 ... oxide, calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyzer, and used in epuration of petroleum product, gum ... , do not pile up in the open air. 2011Hot sale Sodium Tripolyphosphate(94.0% min)