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Content Item | Unit | Qualification | Results |
Purity | % | ≥99.00 | 99.68 |
Chloride | % | ≤0.30 | 0.009 |
iron | % | ≤0.005 | 0.0008 |
As | % | ≤0.0005 | 0.0004 |
Pb | % | ≤0.0005 | 0.0002 |
Insoluble in the water | % | ≤0.10 | 0.02 |
PH | 6-7 | 6.55 | |
Look | White crystalline substance |
megnesium sulphate