Transition Metals Flashcards
Cr3+ reactions with NH3
Aqua, [Cr(H2O)6]3+ violet
With NH3, Cr(OH)3(H2O)3 green ppt
With excess NH3, [Cr(NH3)6]3+ ,purple sol
Fe2+ with NH3
Aqua ion, [Fe(H2O)6]2+, green
With NH3, Fe(OH)2(H2O)4 green ppt
With excess NH3, green ppt
Fe3+ with NH3
Aqua ion, [Fe(H2O)6]3+, yellow
With NH3, Fe(OH)3(H2O)3 brown ppt
With excess NH3, brown ppt
Mn2+ with NH3
Aqua Ion [Mn(H2O)6 ,pale pink
NH3, Mn(OH)2(H2O)4 , pale brown ppt
Excess NH3, pale brown ppt
Cu2+ with NH3
Aqua ion, [Cu(H2O]2+ blue
With NH3, Cu(OH)2(H2O)4 blue ppt
Excess NH3, [Cu(NH3)4(H2O)2 dark blue solution
Cr3+ with NaOH
Aqua Ion, [Cr(H2O)6]3+ , violet
With OH-, Cr(OH)3(H2O)3 , green ppt
With Excess OH-, [Cr(OH)6]3+ green solution
Fe2+ with NaOH
Aqua ion, [Fe(H2O)6]2+ green
With OH-, Fe(OH)2(H2O)4 green ppt
With Excess OH-, green ppt
Fe3+ with NaOH
Aqua ion, [Fe(H2O)6]3+ yellow
With OH-, Fe(OH)3(H2O)3 brown ppt
With Excess OH-, brown ppt
Mn2+ with NaOH
Aqua Ion, [Mn(H2O)6]2+ pale pink
With OH-, Mn(OH)2(H2O)4 pale brown ppt
With Excess OH-, pale brown ppt
Cu2+ with NaOH
Aqua Ion, [Cu(H2O)6]2+ blue
With OH-, Cu(OH)2(H2O)4 blue ppt
With Excess OH-, blue ppt
