Item | Standard | Analysis data |
Appearance | White crystals | Conforms |
Specific rotation[α]D/20 (C=2 in H2O) | +10.8°to +12.3° | +11.65° |
Melting Point (ºC) | 159 to 161 ºC | 159.5ºC |
Chloride(C1) | Not more than 0.02% | 0.005% |
Sulfate(SO4) | Not more than 0.02% | 0.005% |
Iron(Fe) | Not more than 10ppm | 8ppm |
Heavy metals(Pb) | Not more than 10ppm | <10ppm |
Arsenic(As2O3) | Not more than 1ppm | <1ppm |
Loss on drying | Not more than 0.50% | 0.26% |
Residue on ignition | Not more than 0.10% | 0.07% |
Assay | 98.0%~101.0% | 99% |
Conclusion | The product conforms to the standard, the method of test consult AJI92 |