Co(H2O)4(OH)2
BLUE/GREEN PPT
Excess OH-(aq)
OH-(aq) or NH3(aq)
Cu(H2O)4(OH)2
BLUE/GREEN PPT
BLUE PPT
Excess OH-(aq)
OH-(aq) or NH3(aq)
[Cu(H2O)6]2+
PINK SOLUTION
BLUE SOLUTION
Excess NH3
CoCO3
HCl (aq)
Excess NH3(aq)
Na2CO3(aq)
[Co(NH3)6]2+
CuCO3
STRAW COLOURED
GREEN/BLUE PPT
[Cu(NH3)4(H2O)2]2+
HCl (aq)
[CuCl4]2-
Air (Oxygen)
BLUE SOLUTION
[Co(NH3)6]3+
YELLOW/GREEN
SOLUTION
BROWN SOLUTION
Fe(H2O)4(OH)2
Excess OH-(aq)
OH-(aq) or NH3(aq)
Fe(H2O)4(OH)2
GREEN PPT
GREEN PPT
[Fe(H2O)6]2+
GREEN SOLUTION
Excess NH3(aq)
Na2CO3(aq)
FeCO3
GREEN PPT
DEEP BLUE
SOLUTION
SOLUTION
[CoCl4]2-
Cu(H2O)4(OH)2
BLUE PPT
[Co(H2O)6]2+
Na2CO3(aq)
PINK PPT
Co(H2O)4(OH)2
Fe(H2O)4(OH)2
HCl (aq)
[FeCl4]2-
YELLOW
SOLUTION
GREEN PPT
[Cr(OH)6]3GREEN
Cr(H2O)3(OH)3
Excess OH-(aq)
GREEN PPT
OH-(aq) or NH3(aq)
Fe(H2O)3(OH)3
Fe(H2O)3(OH)3
-
BROWN PPT
-
Excess OH (aq)
OH (aq) or NH3(aq)
BROWN PPT
SOLUTION
[Cr(H2O)6]3+
[Fe(H2O)6]3+
Ruby/Violet/Red
YELLOW
SOLUTION
SOLUTION
Na2CO3(aq)
Excess NH3(aq)
Na2CO3(aq)
Excess NH3(aq)
Cr(H2O)3(OH)3
[Cr(NH3)6]3+
Fe(H2O)3(OH)3
Fe(H2O)3(OH)3
GREEN PPT
PURPLE
SOLUTION
BROWN PPT
BROWN PPT
+ CO2 BUBBLES
+ CO2 BUBBLES
[Al(OH)4]COLOURLESS
Al(H2O)3(OH)3
Excess OH-(aq)
OH-(aq) or NH3(aq)
WHITE PPT
SOLUTION
[Al(H2O)6]3+
COLOURLESS
Al(H2O)3(OH)3
WHITE PPT
+ CO2 BUBBLES
Na2CO3(aq)
SOLUTION
Excess NH3(aq)
Al(H2O)3(OH)3
WHITE PPT