Inspection Item | Specifications | Results |
Description | White crystalline powder | Meets the requirements |
Heavy metals | ≤0.002% | 0.000015 |
Lead | ≤0.001% | 0.00001 |
Arsenic | ≤3ppm | 2ppm |
Chloride | ≤0.07% | 0.0004 |
Sulphate | ≤0.05% | 0.0004 |
Reducing substances | ≤0.5% | 0.003 |
PH | 6.5-8.5 | 7.1 |
Loss on drying | ≤1.0% | 0.004 |
Assay | ≥98.0% | 0.991 |