Colour Changes- A2 Chemistry

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  • Created by: Livvib
  • Created on: 13-04-15 10:53
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  • Colour Changes
    • Vanadium
      • Vanadium (V)
        • VO2 +
      • Vanadium (IV)
        • [VO(H2O)5]2+
        • VO 2+
      • Vanadium (III)
        • [V(H2O)6]3+
        • V 3+
      • Vanadium (II)
        • [V(H2O)6]2+
        • V 2+
    • Chromium
      • Chromium (IV)
        • Cr2O7 2-
          • Cr 3+
      • Chromium (VI)
        • [CrO4]2+
          • [Cr(H2O04Cl2]1+
      • Chromium (III) appears green
        • [Cr(H2O)6]3+
          • [Cr(H2O)6]2+
            • Chromium (II)
          • [Cr(NH3)6]3+
          • [Cr(H2O05OH]2+
            • [Cr(H2O)4(OH)2+
              • [Cr(H2O)3(OH)3] (s) (grey/green ppt)
                • [Cr(H2O)2(OH)4]-
        • Cr 3+
      • Chromium (II)
    • Manganese
      • [MnO4]-1
        • [Mn(H2O)6]2+ (very very pale pink appears colourless in solution)
    • Iron
      • [Fe(H2O)6]2+
        • [Fe(H2O)6]3+ (in solution)
          • [Fe(H2O)5NCS]2+
          • [Fe(H2O)5OH]2+ (yellow/ brown)
          • [Fe(H2O)4(OH)3] (s) (red/brown ppt)
        • [Fe(H2O)6]3+ (pale violet as pure crystals but appears yellow in solution because of intensity)
        • [Fe(bipy)3]2+
        • FeSO4.7H2O
        • Fe(NO3)3.9H2O (pale)
    • Copper
      • [Cu(H2O)6]2+
        • [CuCl4]2- (green/ yellow)
        • [Cu(NH304(H2O)2]2+ (blue/violet)
        • CuO (gives blue solution in water)
      • CuCl2 (gives blue solution in water)
        • [Cu(H2O)6]2+
          • [CuCl4]2- (green/ yellow)
          • [Cu(NH304(H2O)2]2+ (blue/violet)
          • CuO (gives blue solution in water)
    • Cobalt
      • [Co(H2O)6]2+
        • [CoCl4]2-
        • CoCl2.6H2O
      • Co 3+ (in acidic/ neutral solutions)
        • Co 2+ (in acidic/ neutral solutions)
      • Co(OH)3  (in alkaline solution)
      • [Co(NH3)6]3+            (in ammonium solution)
        • [Co(NH3)6]2+ (straw) (in ammonium solution)
      • CoCl2(s)
        • [Co(H2O)6]2+
          • [CoCl4]2-
          • CoCl2.6H2O
    • Aluminium
      • [Al(H2O)6]3+
        • [Al(H2O)3(OH)3] (s) (white ppt)
          • [Al(H2O)2(OH)4]1- (colourless solution)

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