Product Name: Zinc Oxide
Molecular Formula: ZnO
Molecular Formula: ZnO
Molecular Weight: 81.37
Zinc Oxide (Indirect Method)
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Index Item
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Index
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Type I
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Type II
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Super Grade
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Grade1
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Qualified Grade
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Super Grade
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Grade1
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Qualified Grade
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|
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Zinc oxide %≥
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99.70
|
99.50
|
99.40
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99.70
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99.50
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99.40
|
|
Metallic metals (as Zn) % ≤
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None
|
None
|
0.008
|
None
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None
|
0.008
|
|
Lead oxide (as Pb) % ≤
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0.037
|
0.05
|
0.14
|
-
|
-
|
-
|
|
Manganic oxide (as Mn) % ≤
|
0.0001
|
0.0001
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0.0003
|
-
|
-
|
-
|
|
Copper oxide (as Cu) % ≤
|
0.0002
|
0.0004
|
0.0007
|
-
|
-
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-
|
|
Insolubles in HCL solution % ≤
|
0.006
|
0.008
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0.05
|
-
|
-
|
-
|
|
Loss on ignition % ≤
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0.2
|
0.2
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0.2
|
-
|
-
|
-
|
|
Screening residues (45μm mesh) % ≤
|
0.10
|
0.15
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0.20
|
0.10
|
0.15
|
0.20
|
|
Soluble matters in Water % ≤
|
0.10
|
0.10
|
0.15
|
0.10
|
0.10
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0.15
|
|
Volatile matters at 105°C % ≤
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0.3
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0.4
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0.5
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0.3
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0.4
|
0.5
|
|
Oil absorption g/100g ≤
|
-
|
-
|
-
|
14
|
14
|
14
|
|
Colour (compared with standard)
|
-
|
-
|
-
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Similar
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Few
|
Little
|
|
Colour killing ( Compared with standard) % ≥
|
-
|
-
|
-
|
100
|
95
|
90
|
Uses: For paint, printing ink, rubber, cable, medicines, electronics ,papermaking ,enamel, cosmetic and other chemical industry application.