2. Mercury process
2.1 Process principle
The basic principle of the mercury process (Figure 11 ) is to produce chlorine in the electrolysis cell and soda and hydrogen in a separate reactor called a decomposer. Thus, chlorine is produced at the anode by oxidation of chloride.
At the cathode, sodium amalgam forms in the mercury at a concentration of approximately 0.2% by mass through the reduction of the Na + ion according to the following reaction:
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Mercury process
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