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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.
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ITEM
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INDEX
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Products grade
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Excellent grade
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Grade I
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Major componets
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Zn %≥
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35.5
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35
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ZnSO4 7H2O %≥
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99
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98
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Insoluble substance % ≤
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0.020
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0.050
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Lead(Pb) %≤
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0.001
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0.002
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Cadmium(Cd) % ≤
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0.001
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0.002
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Fe %≤
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0.003
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0.005
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Mn %≤
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0.005
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0.010
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