|
 SODIUM TRIPQLY PHOSPHATE (STPP) |
|
| Chemical Formula |
Na5P3O10 |
| Inspection Item |
Unit |
Industrial Grade |
Food Grade |
| Assay |
≥ % |
94 |
94 |
|
≥ % |
57 |
57 |
| Water Insoluble Matter |
≤ % |
0.15 |
0.05 |
| Iron(Fe) |
≤ % |
0.015 |
0.015 |
| 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 |
| Whiteness |
≥ % |
90 |
90 |
| Ignition loss |
-- |
1 |
/ |
| density (g/cm3) |
-- |
0.35-0.9 |
0.35-0.9 |
| Phase I |
-- |
10-30 |
10-30 |
| Packing |
In 25Kg or 50 Kg or 1000 Kg net WPP/PE bags. |
| Handling and Storage |
It must be prevented from moisture and water. Don't pile up in the open air. |
| Application: |
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 suspensions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc.; As an oil contamination resistance agent in paper production. 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. |
| Introduction |
White microdot powder with luster, melting point at 622 degree centigrade, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca2+, Mg2+, can soften hard water, change suspension into solution, slightly alkaline, without causticity. |
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