Identifying Cations - Test with Carbonate Ions

  1. All ions, except sodium ions and ammonium ions will form precipitate with carbonate.
  2. This is because sodium carbonate and ammonium carbonate are soluble in water.



Na2CO3
Na+
-
Ca2+
White precipitate.
Mg2+
White precipitate.
Al3+
White precipitate.
Zn2+
White precipitate.
Pb2+
White precipitate.
Fe2+
Green precipitate.
Fe3+
Brown precipitate.
Cu2+
Blue precipitate.
NH4+
-


0 comments:

Post a Comment