... Appearance: White powder or granular; STPP sodium tripolyphosphateSpecifications1,Manufacturer of Sodium Tripolyphosphate (STPP) 2,Free sample 3 ... quality and competitive price 4,Quickly deliveryProduct DescriptionProduct: Sodium Tripolyphosphate (STPP)CAS No.: 7758-29-4 Molecular ... such as paint, kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making, organic ...