Specifications
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
- Direct Zinc Oxide 99.5% ~90%, etc.
- Indirect ZnO: 99.9%~99.7%, etc.
- Feed Grade ZnO: 75%~65%, etc.
- Calcined ZnO: 99.5%,
- 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
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Item/Parameter
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Standard
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||||
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Zinc Oxide (in accordance with dry materials) % ≥
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ZnO 99.5%
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ZnO 99%
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ZnO 98%
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ZnO 95%
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ZnO 90%
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Lead oxide (PbO)% ≤
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0.12
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0.2
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1.0
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3.0
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4.0
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Cadmium oxide (CdO) % ≤
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0.02
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0.05
|
--
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--
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--
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Cupric oxide (CuO) % ≤
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0.006
|
--
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--
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--
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--
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Manganese (Mn) % ≤
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0.0002
|
--
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--
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--
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--
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Metallic Zinc (in accordance with Zn) %
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None
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None
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--
|
--
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--
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Muriatic Acid Insoluble Substance % ≤
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0.03
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0.04
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0.5
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0.7
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2.0
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Loss On Ignition % ≤
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0.4
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0.6
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0.7
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1.0
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5.0
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Water Soluble Substance % ≤
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0.4
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0.6
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0.7
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1.0
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3.0
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Sieve Residue (45um mesh ) % ≤
|
0.28
|
0.32
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0.5
|
0.5
|
0.5
|
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Volatile % ≤
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0.4
|
0.4
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0.5
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0.5
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0.5
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