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SodiumTripolyphosphate (STPP)
Chemical Formula :Na5P3O10
| STPP 96%Min | Industry Grade | Food Grade |
| Purity (Na5P3O10)% ≥ | 96 | 96 |
| P2O5 %≥ | 57.00 | 57 |
| Iron (Fe) %≤ | 0.01 | ----- |
| PH of 1% water solution | 9.2-10.0 | 9.5-10 |
| Water insoluble Matter %≤ | 0.15 | 0.05 |
| Whiteness | 90 | 85 |
| Sulfate% | 0.4% MAX |
| Type I % | 5-40 | 10-60 |
| Density(g/cm3 ) | 0.62-0.9 | 0.65-0.85 |
Appearance : white powder or crystal Pacakge : 25 kgs net kraft paper bag or plastic woven bag, 20 tons in a 20’FCL Usage:it can be used in food additives.In Industry, it is the main additive in syntheticdetergents, soap synergistic agent,industrial water softener, leather pretanning agents,dyeing auxiliaries, oil sludgecontrol agents. Is also a catalyst in organic synthesis as wellas for refined petroleumproducts, pharmaceuticals and synthetic rubber and so on.