Item no |
J50 |
J90 |
J30 |
Appearance |
White powder |
White powder |
White powder |
Purity ﹪ |
≥99.9% |
≥99.9% |
≥99.9% |
Loss on dry ﹪ |
≤0.5 |
≤0.3 |
≤0.3 |
Loss on burning ﹪ |
≤4 |
≤0.2 |
≤0.2 |
Average particle size nm |
50±10 |
90±10 |
30±10 |
Content of Pb in PbO ﹪ |
≤0.0001 |
≤0.0005 |
≤0.0001 |
Content of Mn in MnO﹪ |
≤0.0001 |
≤0.0001 |
≤0.0001 |
Content of Cu in CuO﹪ |
≤0.0002 |
≤0.0002 |
≤0.0002 |