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SZSE：002741
Chemical Reagents
Zinc sulfate?heptahydrate COA Report
  • CAS No.：7446-20-0
  • Molecular weight：287.56
  • Aliases：Goslarite
  • Molecular formula：ZnSO4·7H2O
  • UN Code：3077
  • EC No.：231-793-3
  • HS-No：28332920
Information
Specification category：
Product No. Product name specifications
1.09426.010 Zinc sulfate?heptahydrate AR500g
1.09426.020 Zinc sulfate?heptahydrate AR25kg
1.09426.030 Zinc sulfate?heptahydrate CP500g
1.09426.040 Zinc sulfate?heptahydrate CP25kg
Characteristic： Appearance and properties:Colorless orthorhombic crystals, granules or powder, odorless, taste astringent. Relative density(water=1):1.957 Relative vapor density(air=1):Not available Melting point(℃):100 Boiling point(℃):>500 Saturated vapor pressure:Not available Solubility:soluble in water Heat of combustion (kJ/mol):pointless Critical temperature (℃):pointless Critical pressure (Mpa):pointless Other Properties: 1.484 Technical indicators：
Item AR CP
Assay(ZnSO4 · 7H2O) ≥99.5% ≥99.0%
pH value (50g / L solution, 25 ℃) 4.4～6.0 4.4～6.0
Clarity test, number ≤3 ≤5
Water insoluble ≤0.01% ≤0.02%
Chloride (Cl) ≤0.0005% ≤0.002%
Total nitrogen (N) ≤0.001% ≤0.002%
Arsenic (As) ≤0.00005% ≤0.0002%
Sodium (Na) ≤0.05% ≤0.1%
Magnesium (Mg) ≤0.005% ≤0.01%
Potassium (K) ≤0.01% ≤0.02%
Calcium (Ca) ≤0.005% ≤0.01%
Manganese (Mn) ≤0.0003% ≤0.001%
Iron (Fe) ≤0.0005% ≤0.002%
Copper (Cu) ≤0.001% ≤0.005%
Cadmium (Cd) ≤0.0005% ≤0.002%
Lead (Pb) ≤0.001% ≤0.01%
Hazard characteristics：

IATA-DGR UN 3077 ENVIRONMENTALLY HAZARDOUS SUBSTANCE,SOLID,N.O.S.(ZINC SULFATE),9，Ⅲ

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