| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White crystals or white powder | Conforms |
| Melting point | 112℃~115℃ | 114℃ |
| Acidity | ≤0.5% | 0.08% |
| Loss on drying | ≤0.1% | 0.02% |
| Residue on ignition | ≤0.02% | 0.01% |
| Assay | ≥99.0% | 99.93% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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