Zinc Oxide used in rubber industry
- Courier
- In detail
Zinc oxide(indirect)
Molecular Formula: ZnO
Molecular Weight: 81.37
CAS No. 1314-13-2
H. S. Code: 28170010
Purpose: Mainly used as strengthening agent for rubber products, secondary accelerator for sulphurate rubber, reinforcing agent for coating material, material for hard glass, optical glass, accelerant and medical use rubber ointment; Also widely used in lines such as oil refining, pigment and battery.
Packaging: PE film bag (internal) and plastic woven bag (external), 25 Kg per bag.
Property: White powder, odorless, tastefree, non-gritty. Turn yellow when heated and, white when cooled. Specific gravity: 5.606. Melting point: 1975C. Hiding power: Smaller than that of basic lead white, of that of T10 2 and zinc sulphide. Staining power: 2 times of that of basic lead white. The difference with basic lead white is: It does not turn black with hydrogen sulfide; Dissolve in acids, alkalis, sal ammoniac and ammonia; Does not dissolve in water and alcohol; Change after absorbing CO2 in the air.
| Quality index: | |
| Specifications | Index |
| Zinc oxide≥ | 99.7 |
| Metallic zinc% | none |
| Muriatic acid insoluble substance%≤ | 0.006 |
| Calcination loss%&≤ | 0.2 |
| Hydrotrope%≤ | 0.1 |
| Sieve residue(75umwet sieve)%≤ | 0.1 |
| Lead oxide(Pb)%≤ | 0.037 |
| Copper oxide(Cu)%≤ | 0.0002 |
| Manganese oxide(Mn)%≤ | 0.0001 |
| 105° C volatile%≤ | 0.3 |