Zinc Sulhpate is white free flowing powder, soluble in water, slightly soluble in alcohol, insoluble in acetone
Zinc Sulphate is mainly used for manufacture of zinc salts of barium, and other raw materials, viscose fiber and is also an important adjunct vinylon fiber materials; agriculture as a trace element fertilizer, also used in electroplating, flotation, fruit tree seedlings to prevent disease and recycling Cooling water treatment
Item | Index | |||||
I type ( monohydrated zinc sulfate ) | II type(Zinc vitriol ) | |||||
High-class | First-class | Quality | High-class | First-class | Quality | |
( calculating Zn ) Main content ( calculating ZnSO4·H2O ) ≥% | 35.7 | 35.34 | 34.61 | 22.51 | 22.06 | 20.92 |
(calculating ZnSO4·7H2O ) ≥% | 98 | 97 | 95 | 99 | 97 | 92 |
Insoluable material content ≤% | 0.02 | 0.05 | 0.1 | 0.02 | 0.05 | 0.1 |
PH value ( 50g /L ) ≥% | 4 | 4 | —— | 3 | 3 | —— |
chloride ( calculating Cl ) content ≤% | 0.2 | 0.6 | —— | 0.2 | 0.6 | —— |
( Pb ) content ≤% | 0.002 | 0.007 | 0.01 | 0.002 | 0.01 | 0.01 |
( Fe ) content ≤% | 0.008 | 0.02 | 0.06 | 0.005 | 0.02 | 0.06 |
( Mn ) content ≤% | 0.01 | 0.03 | 0.05 | 0.01 | 0.1 | —— |
( Cd ) content ≤% | 0.002 | 0.007 | 0.01 | 0.002 | 0.01 | —— |
( Cu ) content ≤% | 0.001 | —— | —— | 0.002 | —— | —— |
feed grade zinc sulphate
Specification:
Index name | Index | ||
feed grade zinc sulfate monohydrat | feed grade zinc sulfate heptahydrate | ||
Zinc sulfate content= | 94.7 | 97.3 | |
Zinc( Zn )content= | 34.5 | 22 | |
Arsenic( As )content= | 0.0005 | 0.0005 | |
Plumbum( Pb )content= | 0.002 | 0.001 | |
Cadmium( Cd )content= | 0.003 | 0.002 | |
Fineness passing 250pm test sieve= | 95 | ------- | |
800pm test sieve passed= | ------- | 95 | |
