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Item | Specifications | Results |
Appearance | White crystalline powder | White crystalline powder |
Assay | 99.0~101.0% | 99.9% |
Specific rotation | +22.4°~+24.8° | +23.7° |
pH | 5.6~6.1 | 5.9 |
Residue on ignition | ≤0.40% | 0.13% |
Chloride (CL) | ≤0.05% | 0.018% |
Loss on drying | ≤0.30% | 0.25% |
Sulfate(SO4) | ≤0.03% | 0.015% |
Iron,(Fe) | ≤30ppm | 7ppm |
Heavy metals ,(Pb) | ≤15ppm | 6ppm |
Organic volatile impurities | Meets the requirements | Conform |
Identification | Infrared absorption | Conform |
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