Sodium Tripolyphosphate Powder Food Grade Wholesale CAS NO.7758-29-4

 Sodium Tripolyphosphate is an inorganic compound with formula Na5P3O10, It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of tripolyphosphoric acid. It is produced on a large scale as a component of many domestic and industrial products, especially detergents. Environmental problems associated with eutrophication are attributed to its widespread use.STPP is a preservative for seafood, meats, poultry, and animal feeds. It is common in food production as E number E451. In foods, STPP is used as an emulsifier and to retain moisture.White particle or powder, appearant density 0.35-0.90g/cm3, melting point 622℃. Easily soluble in water, aqueous solution is alkali. Hydrolyze to orthophosphate in water, complexing with calcium, magnesium, iron and other metal ions and generate soluble complex. As inorganic surfactant, it has certain properties of organic surfactants.