|
Item |
Standard |
Results |
|
Color and Texture |
Colorless translucent crystals or white powder |
Conforms |
|
Odor |
With acid taste |
Conforms |
|
Assay(As CaH6O) |
99.7-100.5% |
99.9% |
|
Specific rotation αm(25℃，D) |
+12.0~13.0 |
+12.5 |
|
Arsenic(as As), mg/kg |
≤2 |
＜2 |
|
Lead Pb, mg/kg |
≤2 |
＜2 |
|
Residue on Ignition, % |
≤0.05 |
0.03 |
|
Loss on drying, % |
≤0.5 |
0.12 |
|
Oxalate Test |
Pass Test |
Pass Test |
|
Sulfate Test |
Pass Test |
Pass Test |