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
Heavy Metal (as Pb) % ≤ -- 0.001
Arsenic (As) % ≤ -- 0.0003
Fluoride (F) % ≤ -- 0.005
Pb % ≤ -- 0.0004
Water Insoluble Matter % ≤ 0.1 0.05
whiteness % ≥ 85 85

Minimum Order: 25 tons

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