Item | Standard | Analysis data |
Appearance | White powder | conforms |
State of Solution (Transmittance) | Not less than 95.0% | 98.1% |
Chloride (Cl) | Not more than0.02% | <0.008% |
Heavy metal(Pb) | Not more than 15ppm | <15ppm |
Arsenic(As2O3) | Not more than 2ppm | <2ppm |
Loss on drying | Not more than 0.20% | 0.18% |
Residue on ignition(sulfated) | Not more than 0.20% | 0.11% |
Assay | 98.0 to101.0% | 99.0% |