| ≥1 piece |
|
Items
|
Specification
|
|
Appearance
|
white crystal or crystalline powder
|
|
Purity(on dry basis)
|
98-102%
|
|
Loss on drying
|
4.5% max
|
|
Residue on ignition
|
0.2% max
|
|
PH
|
4.5-6.0
|
|
Specific rotation
|
+15.4-+16.5
|
|
Arsenic
|
3ppm max
|
|
Heavy meta
|
l10ppm max
|
|
Transmittance
|
95% min
|