Metal Ion

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⚠️ Safety
  • NaOH is corrosive; aqueous ammonia is an irritant with pungent fumes — use in a well-ventilated area.
  • Concentrated HCl is corrosive and gives off choking fumes — fume cupboard.
  • Cobalt and chromium compounds are toxic and suspected carcinogens; copper salts are harmful — avoid skin contact.
  • Wear goggles and gloves; collect all heavy-metal solutions as chemical waste — do not pour down the sink.
[Cu(H₂O)₆]²⁺ Pale blue Solution colour Initial: [Cu(H₂O)₆]²⁺ Coordination number: 6
Observations
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