| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White crystalline powder | Conforms |
| Melting point | 151℃~154℃ | 152℃ |
| Chroma | ≤5 | 3 |
| Loss on drying | ≤3.00% | 2.15% |
| Ash | ≤0.007% | 0.005% |
| Iron | ≤0.004% | 0.001% |
| Nitric acid | ≤0.05% | 0.02% |
| Oxidable substances | ≤0.06% | 0.04% |
| Assay | ≥97.0% | 98.50% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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