Gradde | Sb2o399.9 | Sb2o399.80 | Sb2o399.5 | ||
(%) Chemical Vomposition(%) | Sb2o3≥ | 99.90 | 99.80 | 99.50 | |
Asb2o3≤ | 0.02 | 0.05 | 0.06 | ||
Pbo≤ | 0.04 | 0.08 | 0.10 | ||
Fe2o3≤ | 0.02 | 0.005 | 0.006 | ||
Cuo≤ | 0.001 | 0.002 | 0.002 | ||
Se≤ | 0.002 | 0.004 | 0.005 | ||
Physical propetrie | Whiteness% | ≥ | 97.0 | 96.0 | 95.0 |
Average fineness | Coarse≤ | 2.5um | |||
Fine level≤ | 1.6um | ||||
Ultrafine grain size≤ | 0.9um | ||||
Particulate level≤ | 0.4um |
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