Silver Friends, I am soliciting the opinions of the knowledgeable here as to the purity requirements of silver electrodes, for use in making concentrated CS, of the type that would be used to saturate ceramic water purifiers. This CS would not be recommended for ingesting, only used for water filter saturation immediately after production. I am well aware that three nines (99.9%) is minimal purity for CS that is ingested, what about two nines (99.0%) for the purpose of saturating permeable ceramics? What about less than 99.0%?
The purifiers are to be for the use of low income people, for whom low cost of the system is all important. My impression is that 99.9% silver may be double or triple the price of 99.0%. From what I'm seeing here in South Asia it is not difficult to insure 99.0% purity for locally processed silver electrodes. But 99.9% must be imported. So this is much more expensive, particularly in ensuring the additional step of rolling an ingot into an electrode. I'm also of the impression that the major impurity in the silver may by copper or nickel, metals that would also become situated in the purifiers, not flushed into the filtrate. What do you think? Reid -- The silver-list is a moderated forum for discussion of colloidal silver. Instructions for unsubscribing may be found at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <mdev...@eskimo.com>
