STPP-Sodium tripolyphosphate(Na5O10P3)

Sodium Tripolyphosphate(STPP) Alias: sodium tripolyphosphate polygon(sometimes STP or sodium triphosphate or TPP)Molecular formula: Na5P3O10MW: 367.86CAS No.: 7758-29-4Character: Whiteness powder, Melting point 622C. It is soluble in water. It is a good Chelating agent with metal ions such as Fe, Ca, Mg. Alkalescency, non-corrosiveness it is inorganic surfactant.Uses: It is used in various applications such as a for seafood, meats, poultry and pet foods. It is also used in and as a builder in and , improving their cleansing ability.STPP is a solid compound used in a large variety of household cleaning products, mainly as a , but also in human , , industrial cleaning processes and manufacture. STPP is widely used in regular and compact laundry and automatic dishwashing detergents ( in powder, liquid, gel and/or tablet form), toilet cleaners, surface cleaners, and coffee urn cleaners. It also provides a number of chemical functions including: sequestration of "", enabling to function effectively; dirt and prevention of deposition; of grease; and issolving-dispersing dirt particles. Quality standard (reference standard) SpecificationIndexTechnical gradeFood gradeMain content(Na5P3O10)%≥94.095.0(P2O5)%≥57.057.0Fe %≤0.010.01PH(1% solution)9.2-10.09.5-10.0Whiteness9090Heaven metal(Pb)%≤---0.001As%≤---0.0003F %≤---0.003Water insoluble %≤0.150.05Size 16 mesh %≥959535 mesh %≥9090100 mesh %≥4040