DIPHOSPHORUS PENTOXIDE
2. Specification Of Sodium Tripolyphosphate (STPP)
| ITEM | INDEX | |
| Tech. Grade | Food Grade | |
| Na5P3O10 (%): | 94Min | 95Min |
| P2O5 (%): | 57Max | 57Max |
| Insolubles In Water (%): | 0.15Max | 0.05Max |
| Fe (%): | 0.007Max | N |
| Ph (1% Solution): | 9.2-10 | 9.5-10 |
| Heavy Metal (As Pb) (%): | N | 0.001Max |
| Arsenic (As) (%): | N | 0.0003Max |
| Fluoride(F) (%): | N | 0.003Max |
| Whiteness(%): | 90Min | 90Min |
| Density (g/cm3) | 0.35-0.9 | 0.35-0.9 |
| type Content (%) | 10-30 | 10-30 |
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