Appearance | White crystal or crystalline powde |
Infrared Spectroscopy | Conforms to known standard |
Specific Rotation[α]20/D | -152°~ -167°(C=2,1NHCL) |
Transmit tance | ≥98.0% |
Sulphate(SO42-) | ≤0.02% |
Iron(Fe) | ≤10ppm |
Residue on ignition | ≤0.10% |
Heavy metal(Pb) | ≤10ppm |
Assay | 98.5%~101.0% |
Loss on drying | ≤1.0% |