万象城体育

SZSE：002741
万象城体育:
Zinc sulfate heptahydrate万象城体育: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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