CAS No.: | 7446-20-0 |
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Formula: | Feso4 7H2O |
EINECS: | 616-097-3 |
Certification: | ISO |
Purity: | ≤30% |
Type: | Sodium Sulfate |
Samples: |
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Zinc Sulphate is widely used as a nutrient for animal zinc deficiency and feed additive for stock breeding; also used as fertilizer to prevent crops from Zn deficiency and increase crop yields, what is more, widely used as a coagulant in the production of rayon, as a mordant in dyeing , a precursor to the pigment lithopone and as a preservative for skins and leather.
Item |
High-Class |
First-Class |
Qualfier |
( Calculate Zn )Main content |
22.51 |
22 |
20.92 |
(Calculate ZnSO4·7H2O ) ≥% |
99.0 |
97.0 |
92.0 |
Insoluble matter content ≤% |
0.020 |
0.050 |
0.10 |
PH value ( 50g /L ) ≥% |
3.0 |
3.0 |
- |
Chloride ( Cl ) content ≤% | 0.20 |
0.60 |
- |
( Pb ) content ≤% | 0.002 |
0.010 |
0.010 |
( Fe ) content ≤% | 0.005 |
0.020 |
0.060 |
( Mn ) content ≤% | 0.01 |
0.10 |
- |
( Cd ) content ≤% | 0.002 |
0.010 |
- |
( Cu ) content ≤% |
0.002 |
- |
- |
25kg/bag, 27MT/20'FCL without pallets,25MT with pallet
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