Name: Sodium Tripolyphosphate ( STPP ) Food Grade Synonyms: Pent-sodium Phosphate Molecular formula: Na5P3O10 H.S.Code: 28353100 Standard executed : QB1034 -91( Food Grade) Properties: White powder; Melting point 622° C; Easily soluble in water. Spec: No. Specifications Unit Food Grade 1 AssayNa5P3O10 % e95.0 2 P2O5 % e57.0 3 Water Insoluble Matter % d0.05 4 PH value( 1% water solution) 9.5-10.0 5 Heavy Metal ( as Pb) PPM d10 6 Arsenic ( As) PPM d3 7 Fluoride ( F) PPM d30 8 Whiteness( Wg) % e90 Application: Used as quality improver , water retentive agent in the process of meat product, fruit juice drinks, beer, dairy products etc. tender the meat and enhance glutinosity of ham and canned foods , increase weight and keep fresh of seafoods, prevent protein from curds and sedimentation of dairy products , prevent drinks from oxidation , change colour , decomposition of Vitamin C , adjust the quality and intensify function of soybean albumen , soften the scarfskin of horsebean and fruit vegetable, also used as softener and densifier agent .