Testing Item | Standard | Result |
Appearance | White crystalline powder | conforms |
Assay/% | 98.5~101.5 | 99.5 |
Identification | Ninhydrin | conforms |
Chloride(as Cl)/% | ≤0.007 | <0.007 |
Sulphate(as SO4)/% | ≤0.0065 | <0.0065 |
Heavy metals (as Pb)/% | ≤0.002 | <0.001 |
Loss on drying/% | ≤0.2 | 0.10 |
Residue on ignition/% | ≤0.1 | 0.04 |