外观Appearance

白色结晶状White color crystalline fuzzy type

旋光Specific  Rotation

+14.9º~+17.3º

透光率State Of Solution

清澈无色Clear and Colourless

氯化物Chloride

≤0.05%  

硫酸盐Sulfate

≤0.03%

铁盐Iron

≤0.003%

重金属Heavy Metals

≤0.0015%PB 

砷盐Arsenic

≤1.5PPM

干燥失重Loss On Drying

≤0.20%

燃烧残渣Residue On Ignition

≤0.40%

色谱分析Chromatographic Purity

总杂质不超过2.0%，单个杂质不超过0.5%

NMT 2.0% of total impurities, NMT 0.5% of any individual impurities

酸碱度PH

5.5-7.0