Item | Standard | Analysis data |
Appearance | White powder | Conforms |
Chloride (Cl) | Not more than0.04% | 0.016% |
Heavy metal(Pb) | Not more than 10ppm | 8ppm |
Arsenic(As2O3) | Not more than 2ppm | <1ppm |
Sulfate(SO4) | Not more than 0.02% | 0.005% |
Iron(Fe) | Not more than 10ppm | 6ppm |
Loss on drying | Not more than 0.20% | 0.19% |
Residue on ignition (sulfated) | Not more than 0.20% | 0.08% |
Assay | 98.0 to101.0% | 99.0% |
Conclusion | The product meets the standard. |