Molecular formula:Zncl2
Uses:mainly used as the dehydrant, condensing agent and catalyst of organic synthesis, mordant, sizing agent and weightening agent of textile, purifying agent and activator of petroleum, or used in battery, plating, drug, antiseptic, pesticide and welding.
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Item
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Index
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I type
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II type
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III type
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|
Top-grade
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First grade
|
First grade
|
Qualified product
|
| Mass fraction of ZnCl2 W/% ≥ |
96.0
|
95.0
|
95.0
|
93.0
|
40.0
|
| Acid insoluble matter W/% ≤ |
0.01
|
0.02
|
0.05
|
—
|
| Mass fraction of basic salt(ZnO)W/% ≤ |
2.0
|
2.0
|
0.85
|
| Mass fraction of sulfate (SO4)W/% ≤ |
0.01
|
0.01
|
0.05
|
0.004
|
| Mass fraction of Fe W/% ≤ |
0.0005
|
0.001
|
0.003
|
0.0002
|
| Mass fraction of PB W/% ≤ |
0.0005
|
0.001
|
0.0002
|
| Alkali and alkaline earth metals W/%≤ |
1.0
|
1.5
|
0.5
|
| Corrosion test of zinc plate |
passed
|
—
|
passed
|
| PH |
—
|
—
|
3-4
|
