Sodium tripolyphosphate

Sodium Tripolyphosphate (Na₅P₃O₁₀) is used in food industry, detergent industry, metal industry and pharmaceutical industry.

Title: Sodium tripolyphosphate

Synonyms: pentasodium tripolyphosphate, STTP
Formula: Na₅P₃O₁₀, Molecular: 367.86
CAS #: 7758-29-4, EC #: 231-838-7

Standard(s): GB9983-2004, FCC V, Q/8387-2008

Grade: Technical grade, Food grade

Item	Technical grade	Food grade
Packing:	25Kgs/bag, in woven or kraft paper bags with inner bag, or as customer's requirements.
Appearance	White powder or granule	White powder or granule
Assay (Na₅P₃O₁₀) %	≥94	≥95
Phosphoates (P₂O₅) %	≥57	≥57
Whiteness	≥90	≥90
Iron (Fe) %	≤0.01	/
Arsenic (As) %	≤0.001	≤0.0003
Lead (Pb) %	/	≤0.0002
Heavy metal (as Pb) %	≤0.002	/
Fluoride (F) %	/	≤0.001
Chloride(Cl) %	≤0.1	/
pH (1% sol.)	9.2~10.5	9.2~10.5
Water insoluble %	≤0.1	≤0.05
Loss on ignition %	≤1.0	≤2.0
Type I %	5~20	5~20

White powder, melting point 622°C, easily soluble in water. Sodium tripolyphosphate has got salient chelating capacity to ions of Ca and Mg etc., and can soften hard water to make suspension solution become into clear solution. It has got weak alkalinity but no corrosiveness. Sodium tripolyphosphate is a surfactant, and has got outstanding emulsification to lubricants and fat.

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. Sodium tripolyphosphate may also serves as a softener or densifier in foodstuff industry.

Keep in cool dry place.

Air transportation: arranged as ordinary goods.

Harzards Identification & Classifications: N/A

12 months.