At 02:28 PM 3/28/2005 -0500, you wrote: > >Ode Coyote wrote: > >> When using too much current, electrode ends close to the bottom, no >> stirring and lit from the bottom.. I have seen white particles at one >> electrode appearing to strean towards the other electrode, golden particles >> at the other appearing to go the other way and nothing in between. >> >> Under one electrode a white dusty looking deposit forms that fairly hard >> to remove. That electrode develops a white coating that can go to a tan >> color if the process goes long enough. [Presumably silver hydroxide and/or >> silver trapped on hydrogen bubbles] > >I believe that will be primarily silver oxide, and maybe some silver hydroxide >if the ionic content got too high.
## You don't get the coating at all till the ionic content IS high. Going from tan on the electrode at first and to white later on as ionic content gets even higher isn't uncommon but I don't recall the white spot as being any color but white [maybe starting out as tan at first but I don't remember seeing it do that]...and it only develops in a very high concentration 'zone'. ode > >> >> >> The other electrode accumulates a black deposit with a black spot >> underneath. [Presumably silver oxides] > >I believe that to be finely divided silver metal. If you can rub it and it >turns to silver, that should indicate it is silver metal. ## It seems that I can rub either side and get a silver smear. Rubbing the black side, I get both black and silver...mostly black. White side, mostly silver. Since there is probably uncharged metallic silver floating around getting stuck here and there on rough surfaces, rubbing might not be the best indicator of anything. >> >> Many things get mis stated on websites and even in scientific papers. >> One reference to silver hydroxide being black begs confirmation from >> elsewhere. >> They may have 'meant' to say silver oxide. > >I am not sure silver hydroxide can even be in a solid form, I think it is too >unstable to dry without forming silver oxide. But I still can't find any good >references. ## When allowing electrodes to dry, the wet stuff being dried has those silver ions in it that form black/brown oxides when dried. Probably not the best indicator of anything. I'll pay closer attention to what does what, say, if excess EIS water is whipped off before allowing the electrode to dry, does that make a color difference? I have plenty of dusty black AND white electrodes laying about. The white brushes right off with a soft brush. The black sticks better. I tend to whip off excess water. I think I see your point though. If the silver hydroxide IS dissolved, the silver ions and anion hydroxls are free to float about [right?] The hydroxl anion is very unstable and may well be replaced by oxygen to make silver oxide. But, there's also that silver hydroxide that's not dissolved...that IS?? stable.. that should dry out as a white or tan powdery substance or coating and apparently does just that. Perhaps silver hydroxide is pressure sensitive? Honest Injun..I did see bags of silver hydroxide in at least 2 chemical catalogs, for sale, with a price. Why I can't find it now is a mystery to me. Ode > >Marshall > >> >> >> Ode >> >> -- >> Internal Virus Database is out-of-date. >> Checked by AVG Anti-Virus. >> Version: 7.0.308 / Virus Database: 266.7.4 - Release Date: 3/18/2005 >> >> Internal Virus Database is out-of-date. >> Checked by AVG Anti-Virus. >> Version: 7.0.308 / Virus Database: 266.7.4 - Release Date: 3/18/2005 >> >> -- >> Internal Virus Database is out-of-date. >> Checked by AVG Anti-Virus. >> Version: 7.0.308 / Virus Database: 266.7.4 - Release Date: 3/18/2005 >> >> -- >> The Silver List is a moderated forum for discussing Colloidal Silver. >> >> Instructions for unsubscribing are posted at: http://silverlist.org >> >> To post, address your message to: [email protected] >> Silver List archive: http://escribe.com/health/thesilverlist/index.html >> >> Address Off-Topic messages to: [email protected] >> OT Archive: http://escribe.com/health/silverofftopiclist/index.html >> >> List maintainer: Mike Devour <[email protected]> > > > > > >-- >Internal Virus Database is out-of-date. >Checked by AVG Anti-Virus. >Version: 7.0.308 / Virus Database: 266.7.4 - Release Date: 3/18/2005 > > -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.7.4 - Release Date: 3/18/2005 Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.7.4 - Release Date: 3/18/2005 -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.7.4 - Release Date: 3/18/2005
