At 10:51 AM 4/9/00 +1200, you wrote: >Hi KD'C, > >What strength H2O2 are you using, I would guess 3% as you put some in >your mouth without burning it! ## Yup, 3% right from the drugstore > >I have posted experiments (along with others) in the past, using 50% >H2O2. If you care to check the archives, you may find the answers to >most of your questions there. > >H2O2 does react with pure metallic silver, in fact passing high >concentration H2O2 through a silver mesh is a method used in DIY >rocket engines! ## YOW! 3% h202 didn't react [noticeably] immediately with the fresh silver but eventually turned the silver quite black. > >A small length (10mm) of new silver wire was left in 100mls of 50% >H2O2 for a few days. A small stream of bubbles emanated from the >silver and the concentration of silver ions in the solution increased >from zero to well above 20ppm, as measured by Ion Selective Electrode >(ISE). There was no silver oxide. ### Mine turned really black overnight. If that isn't silver oxide, what is it? A mystery here. Catalytic reaction too fast in 50% to make silver oxides? > >A nasty brew of dirty grey (inclusion of large uncharged metallic >colloids, emanating from the cathode) CS was created, there was much >fallout on the bottom of the container. Some of this colloid was >taken, to which a few ml of 50% H2O2 was added. A great cloud of >minute bubbles formed immediately, which were so small that the >solution looked milky, and the Tyndal beam showed a shower of >sparklies. >Within a few hours the solution was completely clear, showing very >little Tyndal effect. The concentration of silver ions increased as >the solution cleared. >I concluded that the H2O2 oxidised the metallic silver particles as it >reduced to O2 gas and water, forming free silver ions and not silver >oxide ### I'm having trouble with the definition of oxidation. To me, when an element combines with oxygen, it has been oxidized. When wood burns, it combines with oxygen in a rapid oxidation reaction producing among other things, carbon dioxide. Silver oxidizes to form dark colored silver oxides. Reduction is the reverse of oxidation...driving off the oxygen. Am I totally confused? > >You talk of the 'oxide load', what do you mean? Is this the build up >on the neg. cathode or pos. anode, fall out on the bottom of the >container or floaters on the solution surface, or colour in the >solution? ## Buildup on the negative electrode [the oxygen producing one? I keep forgetting to check that and it's pretty important], fallout on the bottom, perhaps color in the sol...not totally proven to my satisfaction what causes that one way or the other yet... but not the floaters which retain the color of silver 'dust' and have all the characteristics of a dust on water surface tension. > KD'C
>Regards >Ivan. > >----- Original Message ----- >From: "coyote" <coy...@alltel.net> >To: <silver-list@eskimo.com> >Sent: Sunday, 9 April 2000 00:46 >Subject: Re: CS>hydrogen peroxide and CS production experiment [a >quicky] > > >> ### Interestingly, it seems that the hydrogen peroxide does not >react >> with clean silver but only attacks the oxides wedged in the pits of >an old >> used electrode. Why? I have no clue. I will now take a piece of new >silver >> and place it in h2o2 for several days and see what happens. >> >> Another oddity: [current controlled to .8ma, starting voltage at >24.5v >> winding down to 6v in approx 2 hrs] The oxides seem to form more >vigerously >> at the beginning of the process and in cool water. If the prods and >> container are cleaned about half way through, the oxide load seems >greatly >> reduced. >> If fresh ozonated water is used with cool water, oxide load is >great. >> If the water is warmed to about 100 deg F, bubbles form [dissolved >ozygen?] >> and dissipate [bubbles off] and the subsequent process shows a >greatly >> reduced oxide load. But, running with warm water increases hydrogen >bubbles >> sticking to the other prod [Perhaps something to do with increased >vapor >> pressure forming bigger more stable bubbles and surface tension of >the >> water.] and silver gets trapped on or under the surface of the >hydrogen >> bubbles making a gray fur that clings to one prod. When the prods >are >> removed, the bubbles break at the surface and some of this silver >transfers >> from the surface tension of the hydrogen bubbles to the surface >tension of >> the water and makes what I call a " gray floater". >> >> Back to h2o2 and new silver... so far, no reaction whatsoever. >> >> BTW, running the generator on straight h202 made a sour nasty >tasting >> somewhat milky liquid that foamed in the mouth. >> Momentarily, a rabid looking coyote with a sour expression. I >guess >> even with all that violent bubbling at the electrodes going on, the >o2 >> content of the h202 was pretty much unchanged. >> >> >> Getting small bubbles coming off the new silver now [20 minutes or >so]and >> some signs of gray/black tarnish and initial signs of slight >pitting. >> Looks like h2o2 reacts somewhat violently with silver resulting in >oxides >> being blasted out of the pits? The rougher [more pitted]the silver, >the >> more surface area available, the more violent the reaction? >> KD'C >> > > >-- >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: >silver-list-requ...@eskimo.com -or- silver-digest-requ...@eskimo.com >with the word subscribe or unsubscribe in the SUBJECT line. > >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...@id.net> > > > Make your own pure clear Colloidal Silver with a current controlled, "auto off" generator, for pennies a gallon. http://www.silverpuppy.com
