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Sodium tripolyphosphate STPP food grade
  • CAS:

    7758-29-4
  • Formule moléculaire:

    Na5O10P3
  • Norme de qualité:

    Food & Industrial
  • D’emballage:

    25kg/woven bag with inner HDPE bag
  • Ordre de mininmum:

    1000kg
  • Price inquiry:

    sales@tnjchem.com
  • Manufacturer:

    TNJ Chemical

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  • Détails du produit

Where to buy Sodium tripolyphosphate STPP food grade from China top suppliers and manufacturers at best price? TNJ offers reasonable Sodium tripolyphosphate STPP food grade suppliers price and high quality CAS 7758-29-4. To find food grade STPP Sodium tripolyphosphate suppliers from TNJ Chemical is your best option. 


Sodium triphosphate STP, also sodium tripolyphosphate (STPP), is an inorganic compound with formula Na5P3O10. It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid. Sodium tripolyphosphate is a white crystal powder with melting point at 622℃. STPP is easily soluble in water. And aqueous solution appears acid. It is provided with remarkable chelating ability to some metal ions such as Ca2+ and Mg2+, etc. But it easily aborbs moisture or water.


Specification

 Index  Industrial Grade   Food Grade
 Assay, % ≥  94.0  94.0
 P2O5 % ≥  57.0  57.0
 Water Insoluble Matter %≤  0.15  0.05
 Iron(Fe) %≤  0.01  0.01
 PH value (1% water solution)  9.2-10.0  9.5-10.0
 Heavy Metal (as Pb) %≤  --   0.001
 Arsenic (As) %≤  --  0.0003
 Fluoride (F) %≤  --  0.003

 Particle Size

   Through 16 mesh sieve %≥

   Through 35 mesh sieve %≥

   Trough 100 mesh sieve %≥

 

95.0

90.0

40.0

 

95.0

90.0

40.0
 Whiteness %≥  90.0  90.0

 

Applications

- In food 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. It may also serves as a softener or densifier in foodstuff industry.

- For industry use, it is tanning agent for leather making, auxiliary for dyeing. Additionally, it is used as an oil contamination resistance agent in paper production.


Package

It is packed with polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.

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