China Zinc Sulphate Znso4, Agricultural Grade, Feed Grade, White Powder or Granular, Find details about China Zinc Sulfate, Zinc Sulphate from Zinc Sulphate Znso4, Agricultural Grade, Feed Grade, White Powder or Granular
Items |
Specification |
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I Type (Zinc Sulfate Monohydrate) |
II Type(Zinc Sulfate Heptahydrate) |
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High-Class |
First-Class |
Qualifier |
High-Class |
First-Class |
Qualifier |
|
( calculate Zn ) Main content ( calculate ZnSO 4 @H 2 O ) ≥% |
35.7 |
35.34 |
34.61 |
22.51 |
22.06 |
20.92 |
(calculate ZnSO 4 @7H 2 O ) ≥% |
98.0 |
97.0 |
95.0 |
99.0 |
97.0 |
92.0 |
Insoluble matter content ≤% |
0.020 |
0.050 |
0.10 |
0.020 |
0.050 |
0.10 |
PH value ( 50g /L ) ≥% |
4.0 |
4.0 |
__ |
3.0 |
3.0 |
__ |
Chloride ( Cl ) content ≤% |
0.20 |
0.60 |
__ |
0.20 |
0.60 |
__ |
( Pb ) content ≤% |
0.002 |
0.007 |
0.010 |
0.002 |
0.010 |
0.010 |
( Fe ) content ≤% |
0.008 |
0.020 |
0.060 |
0.005 |
0.020 |
0.060 |
( Mn ) content ≤% |
0.01 |
0.03 |
0.05 |
0.01 |
0.10 |
__ |
( Cd ) content ≤% |
0.002 |
0.007 |
0.010 |
0.002 |
0.010 |
__ |
( Cu ) content ≤% |
0.001 |
__ |
__ |
0.002 |
__ |
|