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Zinc Sulfate
Molecular Formula: ZnSO4 · 7H2O
Zinc Sulphate 21% We formulate and supply zinc sulphate which is known for its excellent chemical properties among our valued clients. This is a type of heptahydrate which is a white crystal and is insoluble in ethanol but soluble in water.
It is manufactured in accordance with required standards and is widely used in:
Animal feeds
Fertilizer ingredient
Paint
Lithopone
Medicine
Leather
Zn electro analysis
Agriculture
Zinc sulfate heptahydrate occurs in nature as the mineral goslarite.
For Laboratory Use Only. Not for drug, household or other uses. Depends on product quantity rquirement.
Preparation Instructions
This product is soluble in water (100 mg/ml), yielding a clear, colorless solution. The maximum solubility in water has been reported to be 1 g/0.6 ml.1 A solution of this product in water has a pH of about 4.51 or higher (up to 5.5)
Product Description
Molecular Formula: ZnSO4 · 7H2O
Molecular Weight: 287.5
CAS Number: 7446-20-0
Melting Point: 100 °C
|
Test |
Specification | Result |
|
Appearance (Color) |
White | White |
|
Appearance (Form) |
Crystals or Crystals with Chunks | Crystals |
|
Complexometric EDTA |
99.0 - 103.0 % | 99.2 % |
|
X-Ray Diffraction |
Conforms to Structure | Conforms |
|
Insoluble Matter c = 10%, Water |
_< 0.01 % | < 0.01 % |
| Calcium (Ca) | _< 0.005 % | < 0.001 % |
| Chloride (Cl) | _< 5 ppm | < 5 ppm |
| Iron (Fe) | _< 0.001 % | < 0.001 % |
| Potassium (K) | _< 0.01 % | < 0.01 % |
| Magnesium (Mg) | _< 0.005 % | < 0.001 % |
| Sodium (Na) | _< 0.05 % | < 0.01 % |
| Ammonia (NH4) | _< 0.001 % | < 0.001 % |
| Nitrate (NO3) | _< 0.002 % | < 0.002 % |
| Lead (Pb) | < 0.003 % | < 0.001 % |
| Manganese (Mn) | < 3 ppm | < 1 ppm |
|
pH c = 5%; Water at 25°C |
4.4 - 6.0 | 4.7 |
| Meets ACS Requirements | Current ACS Specification | Conforms |