Complaint
Industrial grade Zinc Oxide powder for rubber products
Zinc Oxide Grades: Indirect process Zinc Oxide, Direct Process Zinc Oxide, Calcined Zinc Oxide,Feed Grade Zinc Oxide, Pharmaceutic Zinc Oxide, nanometer Zinc Oxide, etc.
Property: White powder, odourless, relative density 5.606, stable under normal temperature. Insoluble in water and alcohol, soluble in acid, alkaki and amkonium solution.
Usage: Used in rubber, dope cable, porcelain enamel, oil, pottery and porcelain, glass and other chemical industry.
Packing: In polyethylene film bag with outer polypropylene woven bag, 25kg, 50kg, big sack bag or as required by the customer.
| Item/Parameter | Standard | ||||
| Zinc Oxide % ≥ | ZnO 99% | ZnO 99.5% | ZnO 99.7% | ZnO 99.8% | ZnO 99.9% |
| Metallic Zinc (in accordance with Zn) % | 0.01 | None | None | None | None |
| Lead oxide (PbO)%≤ | 0.05 | 0.05 | 0.037 | 0.001 | 0.001 |
| Cadmium oxide (CdO) % ≤ | -- | -- | -- | 0.0005 | 0.0005 |
| Cupric oxide (CuO) % ≤ | 0.0004 | 0.0004 | 0.0002 | 0.0002 | 0.0002 |
| As ≤ | -- | -- | -- | 0.0005 | 0.0005 |
| Manganese (Mn) % ≤ | 0.0258 | 0.0001 | 0.0001 | -- | -- |
| Ferro Oxide (FeO) % ≤ | -- | -- | 0.001 | -- | -- |
| Muriatic Acid Insoluble Substance % ≤ | 0.01 | 0.008 | 0.006 | 0.004 | 0.004 |
| Loss On Ignition % ≤ | 0.2 | 0.2 | 0.2 | -- | -- |
| Water Insoluble Substance % ≤ | 0.2 | 0.2 | 0.1 | -- | -- |
| Volatile 105°C % ≤ | 0.5 | 0.4 | 0.3 | 0.3 | 0.3 |
| Sieve Residue (45um mesh ) % ≤ | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Surface Area % ≥ | 40 | 45 | 50 | 60 | 60 |
| Oil Absorption g/100g ≤ | -- | -- | 14 | -- | -- |
| Reducing Power (compared with standard sample) % ≥ | -- | -- | 100 | -- | -- |
| Item/Parameter | Standard | ||||
| Zinc Oxide (in accordance with dry materials) % ≥ | ZnO 99.5% | ZnO 99% | ZnO 98% | ZnO 95% | ZnO 90% |
| Lead oxide (PbO)% ≤ | 0.12 | 0.2 | 1 | 3 | 4 |
| Cadmium oxide (CdO) % ≤ | 0.02 | 0.05 | -- | -- | -- |
| Cupric oxide (CuO) % ≤ | 0.006 | -- | -- | -- | -- |
| Manganese (Mn) % ≤ | 0.0002 | -- | -- | -- | -- |
| Metallic Zinc (in accordance with Zn) % | None | None | -- | -- | -- |
| Muriatic Acid Insoluble Substance % ≤ | 0.03 | 0.04 | 0.5 | 0.7 | 2 |
| Loss On Ignition % ≤ | 0.4 | 0.6 | 0.7 | 1 | 5 |
| Water Soluble Substance % ≤ | 0.4 | 0.6 | 0.7 | 1 | 3 |
| Sieve Residue (45um mesh ) % ≤ | 0.28 | 0.32 | 0.5 | 0.5 | 0.5 |
