Zinc sulfate heptahydrate AGR

ZnSO₄·7H₂O
white vitriol, zinc vitriol
M.W: 287,54  CAS: 7446-20-0  EC: 231-793-3  EC INDEX: 030-006-00-9  
UN: 3077  IMDG: 9 III UN 3077  ADR: 9 III UN 3077   IATA: 9 III UN 3077  

[expand title=”SHOW SPECIFICATIONS” tag=”h6″]

• Appearance colourless crystal or white powder
• Assay 99.5 – 100.5%
• Iron (Fe) ? 0.0003%
• Substances insoluble in water (H₂O) ? 0.005%
• pH (5% water, 20°C) 4.4 – 5.6
• Nitrates (NO₃) ? 0.002%
• Copper (Cu) ? 0.0005%
• Ammonium (NH₄) ? 0.001%
• Chloride (Cl^–) ? 0.0003%
• Arsenic (As) ? 0.0001%
• Calcium (Ca) ? 0.002%
• Potassium (K) ? 0.001%
• Cadmium (Cd) ? 0.0001%
• Magnesium (Mg) ? 0.0003%
• Manganese (Mn) ? 0.0003%
• Sodium (Na) ? 0.001%
• Lead (Pb) ? 0.001%

[/expand]