Sodium Tripolyphosphate(STPP) :

Indexes Industrial Grade Food Grade
Na5P3O10 94.0 94.0
P2O5 % ≥ 57.0 57.0
Water Insoluble Matter % ≤ 0.15 0.04
Iron(Fe) % ≤ 0.015 0.006
PH value (1% water solution) 9.2-10.0 9.5-10.0
Heavy Metal (as Pb) % ≤ - 0.001
Arsenic (As) % ≤ - 0.0003
Fluoride (F) % ≤ - 0.003
Whiteness % ≤ 92 92
Density (g/cm3) 0.35-0.9 0.35-0.9
Phase 10-30 10-30


Sodium Tripolyphosphate(STPP) Properties:
White powder , surface density: 0.35-0.9g/cm3, melting point :622, free soluble in water, aqueous solution appears acid, It is a kind of inorganic surface active agent.

Sodium Tripolyphosphate(STPP) Application:
As an oil contamination resistance agent in paper production.In foodstuff industry it is used as quality improver in the process of canned food, fruit juice drinks, foodstuff 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 aslo serves as softener or densifier in foodstuff industry.

Packing: In 25kg or 50kg or 1000kg net WPP/PE bags;22MT/20'FCL