Sodium Tripolyphosphate (STPP)

Product Description

Full Name: Sodium Tripolyphosphate (STPP) Properties: White particle or powder, appearant density 0.35-0.9g/cmA , melting point 622a . Easily soluble in water, aqueous solution is alkali. Hydrolyze to orthophosphate in water, complaxing with calcium, magnesium, iron and other metal ions and generate soluble complex. Usage: Used as one of the main auxiliaries for synthetic detergent, synergist for soap; water softener, tanning agent for leather making, auxiliary for dyeing; As an effective dispersion agent for suspension solutions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc.; As an oil contamination resistance agent in paper production. In food industry it is used as quality improver in the process of canned food, fruit juice drinks, foodstuffs from milk or soybeans. It may also serves as a softener or densifier in foodstuff industry. Packaging: 25kg bags, 50lb bags, 1000kg jumbo bags Technical Data Sheet: ParameterGuarantee Tech GradeFood Grade Main content % a Y94.095.0 P2O5 % a Y57.057.0 PH Value (1% water solution) 9.2-10.09.4-10.0 Heavy Metal (as Pb) % a --0.001 Arsenic (As) % a --0.0003 Fluoride (F) % a --0.005 Pb % a --0.0004 Water Insoluble Matter % a 0.10.05 whiteness % a Y8585