Only the positive electrode emits ions. The negative electrode produces hydroxyl anions and emits no metal at all. I've even heard of setups that used a silver + electrode centered in a stainless steel bowl.

 Copper seems to have some catalytic effect till it becomes silver plated.

ode


At 09:20 AM 11/7/2006 -0800, you wrote:

Hi folks,



I have been reading that one of the electrodes can be a metal other than silver, however I am concerned that any metal other than stainless steel might contribute undesirable contamination to the CS brew. On the other hand, stainless steel is not the best electrical conductor, so I welcome some comments on this.



One more question. What if the cathode is a strip of stainless steel and the anode opposite this plate consists of several rods of silver wire, appropriately spaced to equal the width of the stainless steel strip?



Peter




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