Solar Energy and Electrolysis of Salt Water



Istvan Simon writes: Very interesting comment by Cameron Sawyer regarding the electrolysis of salt water. I am sure that salt water can be electrolyzed, and that it would work great, since salt is a good conductor. But  it would produce also Sodium and Chlorine as a result. I am not a chemist, but would welcome someone who is, who could perhaps explain whether these would present any problem or not, if the desired principal end product is hydrogen and oxygen.


Istvan Simon commented on  the electrolysis of salt water used in producing solar energy;. I am sure that salt water can be  electrolyzed, and that it would work great, since salt is a good  conductor. But  it would produce also Sodium and Chlorine as a result.   I am not a chemist, but would welcome someone who is, who could  perhaps explain whether these would present any problem or not, if the desired principal end product is hydrogen and oxygen. George Sassoon comments: Surely the chlorine might escape as a gas, and the sodium would combine with water to form sodium hydroxide and hydrogen.  So the net result might be some chlorine in the gases given off.  RH: I still do not understand if this is a good thing, or at least harmless.  Chlorine reacts explosively with hydrogen in sunlight and will corrode most metals.  It was the first poison gas used in World War I.

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Ronald Hilton 2004

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