Downs-cell process
Quick Summary
The Downs-cell process is a method for producing sodium and chlorine through the electrolysis of molten sodium chloride. This process is distinct from the chlor-alkali process, which uses an aqueous solution of sodium chloride to produce chlorine and sodium hydroxide.12
In the Downs cell, molten salt is electrolyzed using graphite anodes and a steel cathode. Sodium ions are reduced at the cathode to form molten sodium metal, while chloride ions are oxidized at the anode to form chlorine gas. This method is crucial for the industrial production of both sodium and chlorine.1
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