Phosphorus and phosphate STPP Sodium tripolyphosphate food grade
Product name: Sodium tripolyphosphate; STPP FOOD GRADE; Sodium Tripolyphosphate FOOD grade.
CAS No. :7758-29-4
Molecular formula:Na5O10P3
Quality standard:GB1886.335-2021
Description:
Sodium tripolyphosphate is white granular or powder, apparent density 0.35-0.95g/cm3, melting point 622 ºC. It is easily soluble in water and the aqueous solution is alkaline. In the water salt has good ability to complex metal ions. It can complex with calcium, magnesium, iron and other metal ions to form soluble complexes. It can soften hard water surfactant and has certain properties of organic surfactant.
Packing: 25kg or 50kg plastic bag, 1000kg jumbo bag. Or agree on the packaging method according to the user's needs.
Technical Specifications:
Specifications |
Food Additive |
Appearance |
White powder |
Purity (Na5P3O10) |
≥85% |
Whiteness |
≥90% |
Content of P2O5 |
56~58% |
Fe |
≤0.07% |
PH Value of 1% water solution |
9.1~10.1 |
Water insoluble |
≤0.1% |
F |
≤20ppm |
Pb |
≤2ppm |
As |
≤3ppm |
Total heavy metal (as Pb) |
≤10ppm |
Transportation:
During transportation, it shall be protected from sun, rain and moisture. It shall be loaded and unloaded with care to avoid damage to the packaging bag.
Storage:
The products shall be stored in a dry and clean warehouse. If they need to be stored in the open air, necessary moisture-proof measures shall be taken. The stacking height shall not exceed the maximum load of the support, and a cover shall be added to prevent sun, rain, moisture and damage.
Application:
We all use genuine raw materials to produce industrial grade sodium tripolyphosphate with less impurities and low content of heavy metals. STPP food grade also is used as water retention agent, quality improver, pH regulator, metal chelator. Sodium tripolyphosphate can increase the tenderness of meat, and can also be used as food improver of fish products and clarifier of beverages.