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Product name: STPP

CAS No.: 7758-29-4




Main content: 94% min.

P2O5: 57%min.

PH Value 9.2-10

Water insoluble: 0.1%max

Fe: 100ppm Max

Whiteness: 90%min

Phase: 40max

Appearance: White Powder

Grade Standard: Industrial


Property: As a chained condensation compound of phosphate soluble in water, it has two existing forms: Na5P3O10(Anhydrous) and Na5P3O106H2O(Crystal). The specific gravity of Na5P3O106H2O is 2.12, that of Na5P3O10 is 0.5-0.6, melting point for both is 622°C. Anhydrous Na5P3O10 is capable of absorbing humidity with its aqueous solution being alkalinity and will be hydrolyzed to ortho-phosphates; It can have emulsification, suspension and dispersion of mud and oil; it has strong buffering effects with PH value between 4.3-14.



In Food:

The uses of stpp include using it as a preservative. Sodium Tripolyphosphate STPP can be used to preserve foods such as red meats, poultry, and seafood, helping them to retain their tenderness and moisture. Pet food and animal feed have been known to be treated with Sodium tripolyphosphate stpp , serving the same general purpose as it does in human food.

In Tech:

The majority of STPP Sodium tripolyphosphate is consumed as a component of commercial detergents.

Other uses include "ceramics (increase viscosity of the glazes upto a certain limit), leather tanning (as masking agent and synthetic tanning agent - SYNTAN), anticaking, setting retarders, flame retardants, paper, anticorrosion pigments, textiles, rubber manufacture, fermentation, antifreeze."


Danger Grade: General Cargo


Shipping: Within 5-7 work days after received your payment


Packaging: 25KG PER BAG

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