|
项 目 Item |
标 准 Specifications |
|
外观 Appearance |
White crystalline powder |
|
含量（干基）, Assay, |
98.5%~101.5% |
|
pH值 pH value |
5.4 to 6.0 |
|
比旋光度 Specific Rotation |
-32.7O ~ -34.7O |
|
干燥失重, Loss on drying , |
Not more than 0.30% |
|
重金属（以Pb计） Heavy metals（as Pb） |
Not more than 15PPM |
|
炽灼残渣, Residue on ignition, |
Not more than 0.4% |
|
氯化物(以Cl计), Chloride （as Cl） |
Not more than 0.05% |
|
硫酸盐(以SO4计), Sulfate(asSO4), |
Not more than 0.03% |
|
铁（以Fe计）, Iron (Fe) , |
Not more than 0.003% |
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