1. 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.
2. Property: White powder, odourless, relative density 5.606, stable under normal temperature. Insoluble in water and alcohol, soluble in acid, alkaki and amkonium solution.
3. Usage: Used in rubber, dope cable, porcelain enamel, oil, pottery and porcelain, glass and other chemical industry.
4. Packing: In polyethylene film bag with outer polypropylene woven bag, 25kg, 50kg, big sack bag or as required by the customer.
Direct process zinc oxide quality meet standard of GB/T3494-1996
Item/Parameter
Standard
Zinc Oxide (in accordance with dry materials) % ¡Ý
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
