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Indirect method zinc oxide 99.7%
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Zinc oxide is used in industri☆§↔♥es such as paints, coati♣≤γngs, rubber, ceramics, medicine, ★γ→and fertilizers, and is often used as a cataly★αst in organic synthesβ®is. Molecular formula: ZnO, molecular weight: →✘ 81.39
Appearance: white fine powder
Zinc oxide specification indicators
Zinc oxide appearance | Powder | ||||
Item | Indicator | ||||
Direct method | Indirect method | ||||
1 | Zinc oxide | ZnO | %Min | 99.5 | 99.7 |
2 | Lead oxide | PbO | %Max | 0.008 | 0.005 |
3 | Cadmium oxide | CdO | %Max | 0.002 | 0.0005 |
4 | Copper oxide | CuO | %Max | 0.003 | 0.0002 |
5 | Manganese | Mn | %Max | 0.0002 | 0.0003 |
6 | Hydrochloric acid in₽€soluble | --- | %Max | 0.03 | 0.04 |
7 | Loss on ignition | --- | %Max | 0.03 | 0.02 |
8 | Water-soluble | --- | %Max | 0.08 | 0.02 |
9 | Screen residue (325 m>εαesh wet sieve) | --- | %Max | 0.02 | 0.001 |
10 | Moisture | --- | %Max | 0.2 | 0.1 |
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