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Re: [ProgSoc] Beer cell



A few thoughts on the matter (it has been about 10 years since I did any serious chem).
1) can you choose different metals? You want one stable metal, one unstable metal. Greater difference in stability=greater voltage. Can't exactly remember what it was, but there was some kind of chart with potentials for each metal.

Basic rule as you go down the Periodic Table, the elements become less stable. As you go right of the Periodic Table, the elements become less stable... What about using carbon rods? They're non-corrosive and they still render reasonable conductivity...



2) maintenance: the unstable electrode will eventually be consumed, so will need replacing. And the beer may saturate with ions too, needing periodic replacement (I think)

See above about carbon rods... But yes, the beer will go flat... Perhaps we can set a cascade set up of the cells so that the flat beer drains down into a bucket and we refill the cell frolm the top with fresh bear every X days?


3) that's all that comes to mind. I wonder if such a cell could be recharged? Give it a try, but beware of H2 gas.

Wet cells like a beer cell tend to fail in terms of recharge.


Eliseo d'Annunzio E-Mail: sherlock@xxxxxxxxxxxxxxxxxx


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