 |
| Quantity: | |
|---|---|
Grade | Technical Grade | Reagent(CP) Grade |
Appearance | Clear and Colorless crystal | Clear and Colorless crystal |
Assay (dried basis) | ≥99.5% | ≥99.5% |
Insoluble matter | ≤0.015% | ≤0.015% |
Sulfate (SO4) | ≤0.02% | ≤0.02% |
Chloride (Cl) | ≤0.002% | ≤0.002% |
Iron | ≤0.001% | ≤0.001% |
Heavy metal (as Pb) | ≤0.001% | ≤0.0015% |
PH | / | 6.0~7.0 |
Sodium | / | ≤0.005% |
Magnesium | / | ≤0.005% |
Potassium | / | ≤0.005% |
Calcium | / | ≤0.005% |
