| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or off-white crystals powder | Conforms |
| Melting point | 216.0~220.0℃ | 216.2~217.1℃ |
| Moisture | 21.0%~24.0% | 22.42% |
| Residue on ignition | ≤0.2% | 0.06% |
| Sulphate | ≤0.05% | <0.05% |
| Chloride | ≤0.02% | <0.02% |
| Purity (on dry base) | ≥99.0% | 99.78% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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