Item | Standard | Analysis data |
Appearance | White crystalline powder | Conforms |
Specific rotation(a)D20 (C=2,H2O) | -11.0º to –12.0º | -11.64º |
Transmittance | Not less than 98.0% | 98.2% |
Melting Point (ºC) | 158ºC to 161 ºC | 159ºC |
Chloride(C1) | Not more than 0.02% | 0.018% |
Ammonium(NH4) | Not more than 0.02% | <0.02% |
Sulfate(SO4) | Not more than 0.02% | 0.005% |
Heavy metals(Pb) | Not more than 10ppm | <10ppm |
Iron(Fe) | Not more than 10ppm | 9ppm |
Arsenic(As2O3) | Not more than 1 PPM | <1ppm |
Loss on drying | Not more than 0.50% | 0.13% |
Residue on ignition | Not more than 0.1% | 0.03% |
Assay | 98.5-101.0% | 99.0% |
Conclusion | The product conforms to the standard, the method of test consult AJI92 |