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NO | Indexes | Industrial Grade | Food Grade |
1 | Total phosphates (as P2 O 5 )% ≥ | 68 | 68 |
2 | Inactive Phosphates (as P2 O 5 )% ≥ | 7.5 | 7.5 |
3 | Iron (Fe) % ≤ | 0.05 | 0.05 |
4 | PH Value | 5.8-6.5 | 5.8-6.5 |
5 | Solubility | pass | pass |
6 | Heavy Metals (as Pb) % ≤ |
| 0.001 |
7 | Arsenic (As)% ≤ |
| 0.0003 |
8 | Fluoride (as F) % ≤ |
| 0.003 |
9 | Water Insoluble matter % ≤ | 0.05 | 0.06 |
10 | Polymerization | 9-21 | 9-21 |
11 | Fineness (mesh) | 60~80 | 60~80 |
sodium hexameta phosphate