Seven water zinc sulfate is a chemical article, the general state is a white crystalline powder.
English name is sulfate heptahydrate zinc;
Alias: dietrichite, goslarite
Smell: no smell;
Appearance: white crystalline powder
Level: industrial grade, fertilizer grade
|
Items |
Index |
|
II |
|
High-class standard |
First-class standard |
Qualified standard |
|
Specifications |
Zn, % |
22.51 |
22.06 |
20.92 |
|
ZnSO4 .7H2O, %> = |
99.0 |
97.0 |
92.0 |
|
Insoluble percentage ,, %< = |
0.02 |
0.05 |
0.10 |
|
PH >= |
3.0 |
3.0 |
- |
|
Pb, %< = |
0.001 |
0.010 |
0.010 |
|
Fe, %< = |
0.003 |
0.020 |
0.060 |
|
Mn, % < = |
0.005 |
0.1 |
- |
|
Cd, % < = |
0.001 |
0.010 |
- |
|
| 
