Item | Standard | Analysis data |
Appearance | White powder | conforms |
Specific rotation[α]20/D (C=2 in water) | -64±3 ° | -63.2° |
Transmittance | Not less than 95.0% | 96.8% |
Melting Point | 123-129 ℃ | 123.5 ℃ |
Arsenic(As2O3) | Not more than 2ppm | conforms |
Loss on drying | Not more than 0.50% | 0.36% |
Residue on ignition | Not more than 0.30% | 0.21% |
Assay | 98.0to102.0% | 99.0% |