Transition metal colours: Fe,Co,Cu Flashcards
1
Q
[Fe(H2O)6]2+
A
Pale green solution
2
Q
[Fe(H2O)4(OH)2]
A
Green ppt
3
Q
[Fe(H2O)6]3+
A
Yellow/brown solution
4
Q
[Fe(H2O)3(OH)3]
A
Brown ppt
5
Q
[Co(H2O)6]2+
A
Pink solution
6
Q
[Co(H2O)4(OH)2]
A
Blue ppt
7
Q
[Co(NH3)6]2+
A
Brown solution
8
Q
[CoCl4]2-
A
Blue solution
9
Q
[Cu(H2O)6]2+
A
Blue solution
10
Q
[Cu(H2O)4(OH)2]
A
Blue ppt
11
Q
[Cu(NH3)4(H2O)2]2+
A
Dark blue solution
12
Q
[CuCl4]2-
A
Yellow solution (mixture appears green)
13
Q
[Cu(edta)]2-
A
Pale blue solution
