Just for fun, I wanted to see how many re-brewing cycles I could force a batch of EIS through. I just finished the eighth re-brewing. I will try for a ninth tomorrow, after it relaxes overnight. It is straw yellow and strongly metallic in taste.
Here is a question. Why does conductivity decay for about a day after the electrolysis? There is more than one possibility. Agglomeration and sedimentation of silver is one possibility. A second possiblity is neutralization of radicals by recombination (e.g. warm water cools and becomes less conductive even though no precipitation occurs.) And a third possibility is the envelopment of silver nanocrystals by waters of hydration; this increases the sluggishness of the charged particulates without sedimentation or charge dissipation. It would be analogous to barnacles encrusting on ship hulls and slowing freighter traffic. Matthew
