| CAS No.: | 7758-29-4 |
|---|---|
| Formula: | Na 5 P 3 O 10 |
| EINECS: | 231-838-7 |
|
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STPP or sodium triphosphate is an inorganic compound with formula Na5P3O10. STPP,Sodium Tripolyphosphate is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid. Sodium tripolyphosphate is produced by heating a stoichiometric mixture of disodium phosphate, Na2HPO4, and monosodium phosphate, NaH2PO4, under carefully controlled conditions. Sodium tripolyphosphate stpp.
3. Detergent Grade
Data Sheet
| ITEM | INDEX |
| Food Grade | |
| Na5P3O10 (%): | 94Min |
| P2O5 (%): | 57Min |
| Insolubles in water (%): | 0.05Max |
| Fe (%): | N |
| Ph (1% solution): | 9.5-10 |
| Heavy Metal (As Pb) (%): | 0.001Max |
| Arsenic (As) (%): | 0.0003Max |
| Fluoride(F) (%): | 0.003Max |
| Whiteness(%): | 90Min |
| Density (g/cm3) | 0.35-0.9 |
| Itype content (%) | 10-30 |
| ITEM | INDEX |
| Food Grade | |
| Na5P3O10 (%): | 94Min |
| P2O5 (%): | 57Min |
| Insolubles in water (%): | 0.05Max |
| Fe (%): | N |
| Ph (1% solution): | 9.5-10 |
| Heavy Metal (As Pb) (%): | 0.001Max |
| Arsenic (As) (%): | 0.0003Max |
| Fluoride(F) (%): | 0.003Max |
| Whiteness(%): | 90Min |
| Density (g/cm3) | 0.35-0.9 |
| Itype content (%) | 10-30 |
In foodstuff industry it 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.
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