Someone on the Seattle Robotic list said he recharges his FeCl.
Here's what he said:
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I have not thrown out FeCl in 12 years. I keep recharging the same
batch. I apply a voltage to a set of nails in the FeCl. One
terminal corrodes away (putting the Fe back), the other terminal
plates out copper (ugly mix of Iron and copper so you wouldn't use
it for anything else, but it takes the copper out of the solution).
I don't know what the voltage is that I use, I suppose it is
somewhere between 1 and 5 volts. I use a variable 12V supply and a
current meter. About a dozen nails wired together and spread out,
I run the voltage up until I have about 4 amps flowing. I leave
that on for half a day to charge up a 2 gallon stock.
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Anyone else doing this?
Steve Greenfield
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Steve Greenfield // Digital photography, scanning,
Polymorph Digital Photography // retouching, and photomorphing
253/318-2473 voice // to your specs.
polymorph@... //
http://www.polyphoto.com/ // Based in Tacoma, WA, USA
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