Favorable price for Sodium Tripolyphosphate (STPP)

Full Name:
Sodium Tripolyphosphate (STPP)
Properties:
White particle or powder, appearant density 0.35-0.9g/cm³, melting point 622℃.
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:
Parameter Guarantee
Tech Grade Food Grade
Main content % ≥ 94.0 95.0
P2O5 % ≥ 57.0 57.0
PH Value (1% water solution) 9.2-10.0 9.4-10.0
Iron (Fe) % ≤ 0.015 ---
Heavy Metal (as Pb) % ≤ -- 0.001
Arsenic (As) % ≤ -- 0.0001
Fluoride (F) % ≤ -- 0.001
Cd % ≤ -- 0.0001
Hg % ≤ -- 0.0001
Water Insoluble Matter % ≤ 0.15 0.05
whiteness % ≥ 90 90
Bulk Density (g/cm3) 0.6-0.9 0.6-0.9

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