Sodium Tripolyphosphate (STPP)

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. And as an oil contamination resistance agent in paper production. In foodstuff industry sodium tripolyphosphate 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. 

Item Result
Na5P3O10 94.3%
P2O5 57.1%
PH 9.3
Whiteness 90
Insoluble in water 0.05%
Granularity 99%
Fe 0.007%
I type 15%
Surface density 0.69 g/cm2
H2O 0.15%
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