Specification:
| Appearance | White crystal | Qualified |
| Assay (%) | ≥99 | 99.28 |
| PH | 7.0-10.5 | 9.15 |
| SO4 (%) | ≤0.08 | <0.08 |
| Ca (%) | ≤0.01 | <0.01 |
| Mg (PPM) | ≤20 | <20 |
| Fe (PPM) | ≤20 | <20 |
| Water (%) | ≤0.5 | 0.16 |
| Appearance | White crystal | Qualified |
| Assay (%) | ≥99 | 99.28 |
| PH | 7.0-10.5 | 9.15 |
| SO4 (%) | ≤0.08 | <0.08 |
| Ca (%) | ≤0.01 | <0.01 |
| Mg (PPM) | ≤20 | <20 |
| Fe (PPM) | ≤20 | <20 |
| Water (%) | ≤0.5 | 0.16 |