Practical Investigation 12.2  Identifying Cations(+ ions) 

Identifying Cations :     GAS ON                         

 HazCard : 2B, 6, 24, 27C, 19A, 55B, 55C,108B

• Test tube and test tube rack

• Pipettes

• Stand and clamps

• Tongs

• Bunsen burner, Heat proof mat

• Red litmus paper

• Sodium Hydroxide 0.2 M

• Ammonium Hydroxide solution 2.0 M (A Level)

• Copper sulphate 1.0 M Iron(II) sulphate 0.1 M (Prepare last minute with few drop of 0.1 M sulfuric acid)

• Iron(II) carbonate 1.0 M Iron(III) Chloride 0.1 M

• Iron (III) sulphate 1.0 M Copper Chloride from 12.1 0.2 M

• Chromium (III) potassium sulphate 1.0 M 0.1 M (Prepare last minute with distilled water)

• Calcium chloride 1.0 M 0.1 M

• Zinc Sulphate 1.0 M 0.1 M

• Aluminium (Chloride) Sulphate(VI) 1.0 M 0.1 M 

• NEVER use anhydrous aluminium chloride to make solutions. It reacts violently with water producing  toxic fumes of hydrogen chloride