Transition Metal Complexes- Colours Flashcard

[Cu(H20)6]2+
Blue Solution
[Cu(NH3)4(H2O)2]2+
Deep Blue Solution
[CuCl4]2-
Yellow-Green Solution
[Cu(H2O)4(OH)2]
Pale Blue Precipitate
CuCO3
Green-Blue Precipitate
[Cr(H2O)6]3+
Ruby Solution
[Cr(NH3)6]3+
Purple Solution
[Cr(H2O)3(OH)3]
Green Precipitate
[Cr(OH)6]3-
Green Solution
[Cr(H2O)6]2+
Blue Solution
CrO4 2-
Yellow Solution
Cr2O7 2-
Orange Solution
[Co(H2O)6]2+
Pink Solution
[Co(NH3)6]2+
Straw-coloured Solution
[Co(NH3)6]3+
Yellow Solution (Appears dark brown due to other compounds)
[CoCl4]2-
Blue Solution
[Co(H2O)4(OH)2]
Green-Blue Precipitate
CoCO3
Pink precipitate
[Fe(H2O)4(OH)2]
Green Precipitate
[Fe(H2O)6]2+
Green Solution
FeCO3
Green Precipitate
[Fe(H2O)6]3+
Very Pale Violet Solution
[Fe(H2O)3(OH)3]
Brown Precipitate
[Al(H2O)6]3+
Colourless Solution
[Al(H2O)3(OH)3]
White Precipitate
[Al(OH)4]-
Colourless Solution
[Mn(H2O)6]2+
Very Pale Pink Solution
MnO4 –
Purple Solution
[Ag(NH3)2]+
Colourless Solution
[Pt(NH3)2Cl2]
Colourless Solution

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