|
检测项目Item |
检测标准Specifications |
检测结果Results |
|
性状Description |
白色晶体或结晶性粉末White granular powder |
白色晶体状粉末White granular powder |
|
鉴别 Identification |
应符合要求 Meet the requirements |
符合要求Conforms |
|
含量Assay,% |
98.5%-101.5% |
99.5% |
|
旋光Specific optical rotation［a］D20
|
-29.4o ~ -32.8o
|
-31.9 o |
|
重金属Heavy metals,% (as Pb) |
≤0.0015% |
＜0.0015% |
|
干燥失重Loss on drying, % |
≤0.30% |
0.13% |
|
砷盐Arsenic(AS2O3) |
≤1 ppm |
＜1ppm |
|
灼烧残渣Residue on ignition, % |
≤0.1% |
0.05% |
|
氯化物Chloride, % (as Cl) |
≤0.05% |
＜0．05% |
|
硫酸盐Sulfate(SO4),% (as SO4 )
|
≤0.03% |
＜0．03% |
|
铁盐Iron(as Fe),% |
≤0.003% |
＜0.003% |
|
有机挥发物 Organic volatile impurrities |
符合规定 Conforms |
符合规定 Conforms |
|
酸度PH |
5．5-7．0 |
5．8
|
