Zinc Oxide
99.5% ~90%
Indirect ZnO:
99.9%~99.7%, etc.
-Feed Grade ZnO: 75%~65%, etc.
-Calcined ZnO: 99.5%,
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
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
|
