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(ZnSO4·H2O) | feed grade zinc sulfate heptahydrate(ZnSO4·7H2O) | ||
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 |
zinc sulfate for foaming ZYAZO-FAPAO