项 目 Item | 标 准 Specifications |
外 观 Appearance | 白色结晶性粉末 white crystanlline powder |
pH值 pH value | 5.0~6.0 |
氯化物,(CI) Chloride content(CI) | 19.0%-19.6% |
重金属(以Pb计 Heavy metals( Pb) | ≤0.001% |
比旋度 Specific rotation | +20.4~+21.4° |
干燥失重, Loss on drying, | ≤0.4% |
灼烧残渣 Residue on ignition, | ≤0.1% |
硫酸盐 Sulfate(SO4-2) | ≤0.03% |
铁盐(以Fe计), Iron (Fe) | ≤0.003% |
含量 Assay | 98.5%~101.5% |
有机挥发杂质 Organic volatile impurities | 应符合规定 Meet the requirement |