Roger wrote: > > > Ivan& Frank: I propose that the mechanism that permits a slight amount of > silver (but sufficient to have germicidal activity) to dissolve in pure > water, is based on the type & concentration of impurities alloyed with the > silver (which provides micro-corrosion sites to electrochemically dissolve > silver into the water). So, why not conduct a simple series of tests. Anyone > who has 0.9999 (or, preferably, higher purity) silver should place it in > distilled water and measure the conductivity every few weeks. Simultaneously, > the same test should be repeated for 0.999 silver, and sterling silver (which > contains about 92% silver, I believe). Plot these conductivity values Vs > time. I believe what you will find is that the conductivity of the water > containing the 0.9999 silver will rise and level off because some of the CO2 > from the air above will dissolve in the DW, BUT, because of its high purity, > practically no silver will dissolve. However, for the less pure silver, the > conductivity will continue to rise with time because some of the silver will > dissolve in the DW UNLESS the metal surface passivates (a good researcher > always has a ready made excuse if his idea doesn't pan out -- helps to remain > gainfully employed). However, I don't expect this to happen since silver > oxide/hydroxide/carbonate are unlikely to form. The ONE THING that should be > kept far, far away form these tests is ANY source of sulfide sulfur (even > infinitesimal amounts of H2S from eggs or other sources will screw things > up). So do these tests in SEALED bottles. Whatever CO2 is "captured" inside > the bottle will reach equilibrium with the DW. AA analysis for silver should > be used to confirm some of the "higher" conductivity results. Roger
I would not depend on conductivity to prove the silver dissolved. I would use only an AAS. If you would like to perform the procedure described above, then send me the samples, I will run the AAS test for silver. frank key -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: [email protected] -or- [email protected] with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
