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Electrolysis of NaCl solution

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aarcain:

--- Quote from: Grundalizer on October 31, 2010, 05:02:55 PM ---No matter how hard you try, you cannot get chlorine gas from the electrolysis of aqueous sodium chloride (NaCl).  You will get Hydrogen and Oxygen gas.  

If you want O2 gas it's much easier to just take apart an alkaline battery and extract the black manganese dioxide, then add store bought hydrogen peroxide.  Oxygen gas will bubble out which you can then use to make things burn more brightly, which is pretty cool.

Why do you want chlorine gas anyway?  Breathing that stuff in will instantly destroy your lungs

--- End quote ---
It does produce chlorine gas if the NaCl does not have iodine in it. . I have used this to produce chlorine gas in the lab.

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