Sodium Tripolyphoshphate (STPP)

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Indexes Industrial Grade Food Grade Na5P3O*0 *4.0%Min *4.0%Min P2 O 5 *7.0%Min *7.0%Min Water Insoluble Matter 0.*5%Max 0.*4%Max Iron(Fe) 0.**5%Max 0.**6%Max PH value (1% water solution) 9.***0.0 9.***0.0 Heavy Metal (as Pb) 0.**1%Max Arsenic (As) 0.***3%Max Fluoride (F) 0.**3%Max Whiteness *2%Min *2%Min Ignition loss 1.0 / density (g/cm 3 ) 0.***0.9 0.***0.9 Phase I ****0 ****0 Application: 1) as one of the main auxiliaries for synthetic detergent, synergist for soap; Water softener. 2)Tanning agent for leather making, auxiliary for dyeing; 3)As an effective dispersion agent for suspensions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc.; 4)As an oil contamination resistance agent in paper production. 5)In foodstuff industry it is used as quality improver in the process of canned food, fruit juice drinks, foodstuffs from milk or soybeans. It may tender the meat in canned ham and soften the skin of horse bean in canned horse bean. It may also serves as a softener or densifier in foodstuff industry.