Transition Metal Complex Colours Flashcard

[Cr(H2O)6]3+
Green Solution
[Cr(H2O)6]2+
Blue Solution
CrO42-
Yellow Solution
Cr2O72-
Orange Solution
[Cr(H2O)3(OH)3]
Green Precipitate
[Cr(OH)6]3-
Green Solution
[Cr(NH3)6]3+
Violet Solution
[Co(H2O)6]2+
Pink Solution
[Co(H2O)4(OH)2]
Blue-Green Precipitate
[Co(NH3)6]2+
Straw Solution
[Co(NH3)6]3+
Brown Solution
CoCO3
Pink Precipitate
[Fe(H2O)6]2+
Pale Green Solution
[Fe(H2O)4(OH)2]
Green Precipitate
FeCO3
Green Precipitate
[Cu(H2O)6]2+
Pale Blue Solution
[Cu(H2O)4(OH)2]
Pale Blue Precipitate
CuCO3
Blue-Green Precipitate
[Fe(H2O)6]3+
Yellow Solution
[Fe(H2O)3(OH)3]
Brown Precipitate
[Al(H2O)6]3+
Colourless Solution
[Al(OH)4]
Colourless

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