Making lye at home using salt and electricity
name: Electrolysis of sodium chloride solution
Wear lab gloves and eye protection.
Follow the safety instructions when dealing with electricity.
Always follow general safety
recommendations. Please note that conducting chemistry
experiments you must comply with the relevant legal procedures in
Sodium is an active metal, and in order to reactivity series hydrogen produces on the cathode in the electrolysis process. Thus, water undergoes electrolysis on the cathode, hydrogen and OH- ions are formed.
Chlorine is produced on the anode. Because of this the experiment should be performed in a well-ventilated room.
As a result of the electrolysis process sodium hydroxide is formed in the solution. It may be precipitated with boiling down the solution.