94% STPP additive powder Specifications Sodium Tripolyphosphate - STPP 1, Industrial grade 2, Additive of Detergent 3, Water softener 4, We can supply best service. Sodium triphosphate (STP, sometimes STPP or sodium tripolyphosphate or TPP,) is an inorganic compound with formula Na5P3O10. It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid. It is produced on a large scale as a component of many domestic and industrial products, especially detergents. 25kg/pp bag 21mt/20G'P.
