Molecular formula ZnSO4 7H2O
Molecular weight 287.56
Physical and chemical property:White crystal, relative density is 3.31, deliquescent in air, easy to dissolve in water, slightly dissolve in sterols, insoluble in acetone, loose crystal water at 280℃ and to be anhydride, decompose as zinc oxide(ZnO)and sulfur trioxide(SO3)at 740℃.
Use:Technical-grade Zinc Sulphate Monohydrate is widely used as intermediates of pharmaceutical、pesticide、dope、dye and pastel, chemical additives、chemical raw material and so on !
Characteristic and function
1. High purity, easy dissolve and active in chemical reaction.
2. Lily-white, has no side effe4ction to colour.
3. Little impurity, non-caking, stiff stability.
Packaging and transportation:Plastic sack inner and reschel bag outside, net weight 25Kg. Protect from damp when transport and stock.
|
ITEM |
INDEX | ||
|
Products grade |
Excellent grade |
Grade I | |
|
Major componets |
Zn %≥ |
35.5 |
35 |
|
ZnSO4 7H2O %≥ |
99 |
98 | |
|
Insoluble substance % ≤ |
0.020 |
0.050 | |
|
Lead(Pb) %≤ |
0.001 |
0.002 | |
|
Cadmium(Cd) % ≤ |
0.001 |
0.002 | |
|
Fe %≤ |
0.003 |
0.005 | |
|
Mn %≤ |
0.005 |
0.010 | |