|
|
zinc sulfate
|
Item
|
%(m/m)
|
|
Index
|
|
Premium grade
|
First grade
|
Salable product
|
Main assay(as ZnSo4.7H2O) |
99.0
|
97.0
|
92.0
|
insoluble matter  |
0.020
|
0.050
|
0.10
|
| PH (50g/L solution) |
3.0
|
3.0
|
-
|
| chloride(as CI) |
0.20
|
0.60
|
-
|
| Pb |
0.002
|
0.010
|
0.010
|
| Fe |
0.005
|
0.020
|
0.060
|
| Mn |
0.01
|
0.10
|
-
|
| Cd |
0.002
|
0.010
|
-
|
| Cu |
0.002
|
-
|
-
|
|
Item
|
Index
|
|
Premium grade
|
First grade
|
Salable product
|
| Main assay(as Zn)(dry)% |
57.5
|
57.0
|
56.5
|
| Loss on ignition% |
25.0-28.0
|
25.0¡«30.0
|
25.0¡«32.0
|
| heavy metal(as Pb )% |
0.04
|
0.05
|
0.05
|
| moisture % |
2.5
|
3.5
|
5.0
|
| sulfate(as SO4)% |
0.60
|
0.80
|
-
|
| fineness on 75¦Ìm screen % |
95.0
|
94.0
|
93.0
|
| Cd % |
0.10
|
-
|
-
|
| Annotation: If you have special demand to fineness,
you can talk with us. |
|
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Gansu, China |
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|
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Rao Jian |
| Mobile phone: |
13909438274 |
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qsgc@hi2000.com |
| URL: |
qsgs.0943.com.cn
|
| |
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