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Grade Standard: Electron, Rubber, Agriculture, Ceramics, painting, Nano Grade etc.
Packing: 25kg or 50 pp woven bags, or as customers' requirement.
Properties: White powder, odourless, relative density 5.606, stable under normal temperature.Insoluble in water and alcohol, soluble in acid, alkaki and amkonium solution.
Application: Used in rubber, dope cable, porcelain enamel, oil, pottery and porcelain, glass and other chemical industry.
Here is our general specification:
Direct process zinc oxide quality meet standard of GB/T3494-1996
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 | 1.0 | 3.0 | 4.0 | |
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 | 2.0 | |
Loss On Ignition % ≤ | 0.4 | 0.6 | 0.7 | 1.0 | 5.0 | |
Water Soluble Substance % ≤ | 0.4 | 0.6 | 0.7 | 1.0 | 3.0 | |
Sieve Residue (45um mesh ) % ≤ | 0.28 | 0.32 | 0.5 | 0.5 | 0.5 | |
Volatile % ≤ | 0.4 | 0.4 | 0.5 | 0.5 | 0.5 | |
contact person: Anne
zinc oxide 99% for rubber