Ammonium Sulphate Specification
| Description |
White Crystal |
| Assay |
99.5% |
| pH (5% solution) |
5.8 |
| Iron |
0.0005% |
| Chloride |
0.0005% |
| Lead (Pb) |
0.001% |
Zinc Sulphate
Monohydrate Technical Specification
| Physical Appearance |
White Fine Powder |
| Purity |
90% (+ 1%) |
| Zn-Content |
32 to 33 % |
| Fe - Contents |
0.5 % Maximum |
| Cu-Contents |
0.1% Maximum |
| Insoluable |
Less than 0.15% |
| pH (5% Solution)
|
3.0 to 3.5 |
| Mesh Size |
100 to 150 Mesh |
Zinc Sulphate Heptahydrate LR
Grade Specification
| Product |
Zinc Sulphate Heptahydrate |
| Form |
White Crystals |
| Zn |
22 % (+/-1%) |
| pH 5% w/v in DW |
4.6 - 4.8 okay as it is |
| Fe |
Less than 10 ppm |
| Pb |
Less than 10 ppm |
| Cu |
Less than 5 ppm |
| Chloride |
passes test (U.S.P.) |
| 5% Solution |
is clear & colourless |
| Solubility in
distilled water |
complete |
| 5% solution in excess Ammonia |
clear and colourless |
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