Sodium Tripolyphosphate (STPP) is a white powder, it is produced on a large scale as a component of many domestic and industrial products, especially  as one of the main auxiliaries for synthetic detergent; but also as a water softener, tanning agent for leather making, auxiliary for dyeing, an effective dispersion agent for suspensions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc.  As an oil contamination resistance agent in paper production and as ceramic raw material in clay process and for the glazed tiles manufacturing..