1. Formula: ZnO
2. CAS NO.: 1314-13-2
3. M. W: 81.38
4. Properties: White powder, innocuous, odorless, stable under normal temperature. Soluble in acid, alkali and ammonium chloride solution, insoluble in water and alcohol.
5. Packing: Woven bags lined with plastic bag. 25Kg net each
| Index | First grade | Second grade | Third grade |
| ZnO dry | 99.7min | 99.7min | 99.7min |
| Pb | 0.037max | 0.06max | 0.1max |
| Mn | 0.0001max | 0.0001max | 0.0001max |
| Cu | 0.0002max | 0.0002max | 0.0002max |
| Insoluble in hydrochloric acid | 0.006max | 0.01max | 0.1max |
| loss on ignition | 0.2max | 0.2max | 0.2max |
| screen residues(45 micro) | 0.1max | 0.1max | 0.1max |
| volatile(105 degree Celsius) | 0.3max | 0.3max | 0.3max |