Specific rotation +7.5~+8.5
|
+8.1°
|
Heavy metals
|
≤20ppm
|
Water content
|
≤0.50%
|
Residue on ignition
|
≤0.10%
|
Assay
|
98.0-102.0%
|
PH
|
5.0-6.0
|