| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or almost white crystalline powder | Conforms |
| Melting point | 158.0~162.0℃ | 160.3~161.0℃ |
| PH | 2.5~3.5 | 2.91 |
| Chloride | ≤0.025% | <0.025% |
| Sulfates | ≤0.1% | <0.1% |
| Loss on drying | ≤0.5% | 0.40% |
| Related substances | ≤1.0% | 0.62% |
| Sulfated ash | ≤0.3% | 0.09% |
| Heavy metals | ≤0.002% | <0.002% |
| Assay | 98.0%~101.0% | 99.31% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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