What are the two major problems and their solutions for the Nelson's cell or Diaphragm cell
Answers
The first problem is solve by using asbestos diaphragm. Its keeps the two solutions separated and migrate Na+ ions towards the chloride. The second problem is solve by keeping the brine level slightly higher in anode compartment . So, flow of liquid continues towards the cathode and OH- ions can not react the anode.
The first problem is the mixing of two solutions.
In order to solve this problem the two solutions must be separated. asbestos diaphragm is used for this purpose as it keeps the solutions from mixing. Na+ ions are attracted towards chloride.
The next problem is of slope as it tampers with flow of solution towards the cathode. We raise the brine solution level in anode higher so as to maintain the flow to cathode and to get OH- ions react with cathode.
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