1.Zinc Oxide
2.Indirect(process) Process
3.CAS NO.:1314-13-2
4.Molecular formula:ZnO
5.English name:Zinc Oxide
Package:25kg/bag,22ton/container,20ton/container without pallet
Application:Mainly used in rubber,foaming,coating,enamel,paper making,ceramics,printing ink,paints and other fields.
Performance: indirect-method ZnO is produced by an oxidation method and a calcination method. It is white powder stable at normal temperature, has good hiding power and tinctorial strength, can dissolve in acid, alkali and ammonia salt solution, and belongs to amphoteric zinc oxide.
Spcification:
| Catalog | Index |
| Model | SP-T1(special grade 1) | SP-T2(special grade | SP-T3(special grade 3) |
| ZnO (based on dry products)%≥ | 99.8 | 99.7 | 99.5 |
| metal (based on Zn) %≤ | - | - | - |
| PbO (based on Pb) %≤ | 0.0028 | 0.037 | 0.04 |
| CuO (based on Cu) %≤ | 0.0001 | 0.0002 | 0.0004 |
| MnO (based on Mn) %≤ | 0.0001 | 0.0001 | 0.0001 |
| Hydrochloric acid insoluble matter %≤ | 0.003 | 0.012 | 0.015 |
| Ignition loss %≤ | 0.13 | 0.2 | 0.2 |
| Water soluble matter %≤ | 0.01 | 0.1 | 0.2 |
| Residue on screen (320 mesh) wet screening %≤ | 0.10 | 0.13 | 0.2 |
| 105ºC volatile matter %≤ | 0.06 | 0.3 | 0.4 |
| Specific surface area (m²/g)%≥ | 60 | 50 | 45 |
| Particle size um | 20-40(um) | 25-40 | 25-40 |
| Zinc Oxide (in accordance with dry materials) % ≥ | ZnO 99% | ZnO 98% | ZnO 95% | ZnO 90% |
| Lead oxide (PbO)% ≤ | 0.2 | 1.0 | 3.0 | 4.0 |
| Cadmium oxide (CdO) % ≤ | 0.05 | -- | -- | -- |
| Cupric oxide (CuO) % ≤ | -- | -- | -- | -- |
| Manganese (Mn) % ≤ | -- | -- | -- | -- |
| Metallic Zinc (in accordance with Zn) % | None | -- | -- | -- |
| Muriatic Acid Insoluble Substance % ≤ | 0.04 | 0.5 | 0.7 | 2.0 |
| Loss On Ignition % ≤ | 0.6 | 0.7 | 1.0 | 5.0 |
| Water Soluble Substance % ≤ | 0.6 | 0.7 | 1.0 | 3.0 |
| Sieve Residue (45um mesh ) % ≤ | 0.32 | 0.5 | 0.5 | 0.5 |
| Volatile % ≤ | 0.4 | 0.5 | 0.5 | 0.5 |