... Chemical formula: Na5P3O10 Min order:2mts Sodium Tripolyphosphate(STPP/FCC IV)Properties: White microdot powder with luster, ... auxiliary agent, and dispersant of suspension such as paint, kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making ... bags. Furthermore, it should be stored separately from poisonous substances. Sodium Tripolyphosphate (STPP)