Zinc Sulfate 33
Zinc Sulfate Heptahydrate, Synonyms: white vitriol, zinc vitriol
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 |
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