Item |
Specifications |
Results |
性狀Description |
白色晶體或結(jié)晶性粉末White granular powder |
白色晶體狀粉末White granular powder |
鑒別Identification |
紅外吸收光譜法Infrared Absorption |
符合Qualified |
含量Assay, |
98.5%-101.5% |
99.8% |
透光率State of solution |
≥98%% |
98.4% |
旋光Specific optical rotation[a]
|
+20.4o ~ +21.4o
|
+21.0o |
氯離子 Chloride (as cl) |
19.0%~19.6% |
19.13% |
硫酸根Sulfate(as SO4) |
≤0.03% |
0.015% |
鐵鹽 Iron (as Fe) |
≤30 ppm |
3ppm |
重金屬Heavy metals,% (as Pb) |
≤15 ppm |
3ppm |
干燥失重Loss on drying |
≤0.4% |
0.28% |
灼燒殘?jiān)黂esidue on ignition, |
≤0.1% |
0.06% |