I have used the flow through process for about 20 years. It is best if you alternate the anode and cathode every minute. That prevents the buildup of black on one and white on the other, since when you reverse the polarity, it will burn it back off. Obviously if you are doing that, both electrodes need to be the same size. If you use silver sheets you can easily get into decent flow through rates. Use a flowmeter with a fountain pump to regulate the flow, and run a constant current.

Marshall

On 4/7/2020 8:34 PM, Sam L. wrote:
A old timer here, just haven't posted in a long time. I have different sizes of silver bars and rod, Is a long story so I will not get into details about it. As I understand it,I need one square inch of anode per 1 mA. I have current control and stirring and a mA meter to verify. I guess my question being, does the cathode size matter?
And if it does how would that affect the EIS solution.
I am trying to engineer a flow though process where I just drain off 1 gallon and then add 1 gallon of distilled water. Not to bring up bad memories, but was a discussion here a decade ago or more with Mike M and I believe it was concerning the size of the cathode verses the anode?
tia
Sam L

--
A government big enough to give you everything you want will take
everything you have.


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