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Item | Specifications | Results |
Appearance | White crystalline or powder, no visible impurities | Qualified |
Purity | ≥99.5% | 99.70% |
MP | 184-188℃ | 187℃ |
Moisture | ≤0.50% | 0.30% |
Residue on ignition | ≤0.025% | 0.002% |
Iron | ≤0.002% | 0.0001% |
Pb | ≤0.005% | <0.001 |













Item | Specifications | Results |
Appearance | White crystal powder | White crystal powder |
Purity | ≥99.0% | 99.63% |
MP | 175-178℃ | 175.4℃- 176.8℃ |
Water content | ≤0.5% | 0.20% |
Residue on ignition | ≤0.2% | ≤0.002% |













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