Transition metal colours
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Last updated 3:02 PM on 12/22/25
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15 Terms
1
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[Cu(H2O)6]2+
Pale blue solution
2
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Cu(OH)2 (s)
Pale blue precipitate
3
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[Cu(NH3)4(H2O)2]2+
Dark blue solution
4
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CuCl42-
Yellow solution
5
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CoCl42-
Blue solution
6
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[Cr(H2O)6]3+
Pale purple solution, turns green when heated. (Common to appear green in solution due to impurities).
7
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Cr(OH)3 (s)
Dark green precipitate
8
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[Cr(NH3)6]3+
Purple solution
9
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[Cr(OH)6]3-
Dark green solution
10
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[Mn(H2O)6]2+
Pale pink solution
11
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Mn(OH)2 (s)
Pale brown precipitate
12
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[Fe(H2O)6]2+
Pale green solution
13
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Fe(OH)2 (s)
Dark green precipitate
14
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[Fe(H2O)6]3+
Yellow solution
15
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Fe(OH)3 (s)
Orange-brown precipitate
