... of Sodium Tripolyphosphate (STPP) 2,Free sample 3,High quality and competitive price 4,Quickly delivery Product DescriptionProduct: Sodium Tripolyphosphate ... calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyzer, and used in epuration of petroleum product, gum ... moisture, do not pile up in the open air good quality Sodium Tripolyphosphate(94.0% min) supplier