China (Mainland)
Products name : Zinc Oxide
ZnO: Zinc White
Technica Specificationl: GB/T3185-92
Item (indirect)
Index
Nks001
Nks002
Zinc Oxide(min%)
99.7
99.5
Metallic Metals(as ZnO max%)
None
None
Lead Oxide(max% )
0.037
0.05
Manganese Dioxide(max %)
0.0001
0.0001
Copper Oxide(max%)
0.0002
0.0004
Loss on Ignition (max %)
0.2
0.2
Volatilization at 105 Degree Celsium(max%)
0.3
0.4
Insolubles in HCl solution(max%)
0.003
0.008
Solubility in water( max% )
0.10
0.10
Technical Specification: GB/T3494-1996
Index Item (direct)
Rubber-1
Rubber-2
Paint-1
Paint-2
Paint-3
Zinc Oxide(min %)
99.5
99.0
99.5
99.0
98.0
Lead Oxide(max %)
0.12
0.20
-
-
-
Cadmium Oxide(max %) CdO
0.02
0.05
-
-
-
Copper Oxide(max %)
0.006
0.007
-
-
-
Manganese Dioxide (max %) MnO2
0.0002
0.0003
-
-
-
Metallic Metals(as Zn max%)
None
None
None
-
-
Insolubles in HCl Solution (max %)
0.03
0.04
-
-
-
Losses on Ignition (max %)
0.4
0.6
0.4
0.6
-
Solubility in Water (max %)
0.4
0.6
0.4
0.6
0.8
Residues 320µm Wet Screen (max %)
0.28
0.32
0.28
0.32
0.35
Moisture (max %)
0.4
0.4
0.4
0.4
0.4
Hiding power(max g/m)
-
-
150
150
150
Oil Absorption (max %)
-
-
18
20
20
Colour Killing (min%)
-
-
100
95
95
Technical Specifications : HG/T2572-94
Item (Active)
Index
I-class
II-class
Zinc Oxide (min%)
95-98
95-98
Moisture (max%)
0.7
0.7
Loss on Lgnition (max%)
1-4
1-4
Insolubles in HCI Solution (max%)
0.02
0.05
Lead Oxide (max%)
0.01
0.05
Manganese Dioxide (max%)
0.001
0.003
Copper Oxide (max%)
0.001
0.003
Fineness(45µm Screening Residues max%)
0.1
0.4
Specific Surface( min m2/g )
45
35
Bulk Density (min g/ml )
0.35
0.40
Molecular formular: ZnO
Molecular weight: 81.39
Properties : White hexagonal crystals or powder, Solube in acids, caustic soda and ammon, insoluble in water and ethanol