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Sodium Tripolyphosphate
Nanjing Liwei Chemical Co., Ltd.

Specifications
Sodium tripolyphosphate
Molecular Formula:Na5P3O10
Product Code:7758-29-4
Storage Conditions: QB 1034-1991
Sodium tripolyphosphate 95%
Appearance   White Powder or granules
Sodium Tripolyphosphate %(w/w) min 95
P2O5 %(w/w) min 57.0
Fluoride (as F) mg/kg max 30
Arsenic (As) mg/kg max 3
Heavy Metal (as Pb) mg/kg max 10
Chloride (as Cl) mg/kg max 250
Sulfate (as SO42-) %(w/w) max 0.4
Water Insoluble %(w/w) max  0.05
PH (1% aqueous solution)   9.5 -10.0
Whiteness % min  85
Packing & Storage
Packing Plastic knit bag or kraft bag, net weight 25kg or 50 kg.
Storage Store at a cool, dry and well ventilated place. The package must be moistureproof and well sealed. Handle with care. During transportation, please avoid rains and strong sunshine. In case of fire, please use water,sandy soil or all kinds of fire extinguishers to quench it.
Free Quote
For samples, pricing, or more information, please call us at 0086-25-52397803 or mail to info@china-phosphate.com or fill out the following form. We will respond to you as soon as possible.
Frequently Asked Questions

Q: What is Sodium Tripolyphosphate?
A: Sodium tripolyphosphate (STP, sometimes STPP or sodium triphosphate or TPP) is an inorganic compound with formula Na5P3O10. Sodium triphosphate is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid.

Q: How do you produce it?
A: Sodium tripolyphosphate is produced by heating a stoichiometric mixture of disodium phosphate, Na2HPO4, and monosodium phosphate, NaH2PO4, under carefully controlled conditions.



Q: Sodium Tripolyphosphate Food Grade Usage?
A: The uses of sodium tripolyphosphate also 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 triphosphate, serving the same general purpose as it does in human food.
STPP sodium tripolyphosphate also has been used in helping to preserve the quality of drinks such as milk and fruit juices.



We also provide other food grade phosphates: SODIUM ACID PYROPHOSPHATE ,MSP, TETRASODIUM PYROPHOSPHATE...