Cation tests
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14 Terms
Ca2+ with NH3
no precipitate
Al3+ with NH3
white precipitate, insoluble in excess
Zn2+ with NH3
white precipitate, soluble in excess
Fe2+ with NH3
green precipitate, insoluble in excess but turns brown on standing
Fe3+ with NH3
red-orange precipitate, insoluble in excess
Cr3+ with NH3
green precipitate, insoluble in excess
Cu2+ with NH3
light blue precipitate, insoluble in excess, forms dark blue solution
Ca2+ with Na(OH)
white precipitate, insoluble in excess
Al3+ with Na(OH)
white precipitate, insoluble in excess
Zn2+ with Na(OH)
white precipitate, insoluble in excess
Fe2+ with Na(OH)
green precipitate, insoluble in excess, turns brown on standing
Fe3+ with Na(OH)
red-brown precipitate, insoluble in excess
Cr3+ with Na(OH)
green precipitate, soluble in excess
Cu2+ with Na(OH)
light blue precipitate, insoluble in excess
Note 
Flashcards (72)