Chemical tests
Sulfate SO4 2-
Acidified Barium Chloride - white ppt of BaSo4
Carbonate CO3 2-
Dilute Acid - Effervescence, and turn limewater cloudy
Chloride Cl-
White ppt with aqueous silver nitrate, dissolves in dilute NH3
Bromine Br-
Cream ppt with aqueous silver nitrate, dissolves in oonc NH3
Iodide I-
Yellow ppt with aqueous silver nitrate, does not dissolve in conc NH3
Ammonium NH4+
heat with OH-, litmus paper red to blue as alkaline NH3 produced
Chromium (III) Cr 3+
Violet solution in water, green precipitate in OH-
Iron (II) Fe2+
Pale green solution water, green precipitate in OH-
Iron (III) Fe3+
pale yellow sol water, brown ppt in OH-
Manganese (II) Mn 2+
Pale pink solution water, pink/buff ppt in OH-
Copper (II) Cu2+
blue solution water, pale blue ppt in OH-