Marshall <mdud...@king-cart.com> wrote: >On 9/14/2011 9:42 PM, Mike Monett wrote
>> 7. The black stuff that forms on the electrodes is silver >> hydroxide, AgOH, not silver oxide, Ag2O. >> Your statement is incorrect. >> You cannot produce silver Oxide, Ag2O, by using electrolysis. > As I pointed out before, Silver Hydroxide and Silver Oxide convert > back and forth between each other when in water. Here is a > reference for that: >http://en.wikipedia.org/wiki/Silver_oxide > 2 AgOH ? Ag_2 O + H_2 O (/p/K > <http://en.wikipedia.org/wiki/Equilibrium_constant> = 2.875^[5] ><http://en.wikipedia.org/wiki/Silver_oxide#cite_note-4> ) > Also as I pointed out in a previous message, silver hydroxide > decomposes into Silver oxide when it drys out. It does not occur > except as a solution. Here they talk about that: >http://au.answers.yahoo.com/question/index?qid=20100726032601AA2jYuy > Thus, when on a wet electrode, it can be silver oxide or silver > hydroxide, but when dried out it will always be silver oxide. >Marshall Sorry, Marshall, your statement is incorrect. The references are wrong. Silver hydroxide is insoluble. I posted experiments long ago that shows this. I found one, and am still looking for the other. They follow along these lines: First, silver hydroxide decomposes at 60C to 80C. I have the reference somewhere but can't put my finger on it at the moment. But you can prove it to yourself. Take the anode after a brew and let it dry. Put it on a hot plate with a microscope and thermometer. You will find it changes from black to gray as the temperature passes through the 60C to 80C region. This means the compound has decomposed to oxygen and silver Silver oxide decomposes at 280C http://en.wikipedia.org/wiki/Silver_oxide So the black stuff cannot be silver oxide. The only other suspect is silver hydroxide, AgOH. The equation is Ag+ + OH- --> AgOH This shows that silver hydroxide does not change to silver oxide as it dries out. Your statements are incorrect, and your references are wrong. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Second, if you do a brew with 20ppm that has 10% particles, the brew contains 2 ppm of silver hydroxide. This will turn the solution yellow due to plasmon absorbance. Silver oxide is soluble to 0.025 g/L, or 25ppm. Same reference. Ions are not visible. So if the silver hydroxide changed to silver oxide, the yellow color would disappear as the compound changed to ions. This does not happen. So the yellow color has to be silver hydroxide, AgOH, and not silver oxide, Ag2O. This shows that silver hydroxide is not soluble in dw, and your statements are incorrect. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Third, take two electrodes and straighten them, then separate them by the distance of a sheet of paper. Place them in a fresh jar of dw. Measure the conductance. Apply a small current until the electrodes show a black deposit. Monitor the current and perform the Faraday calculation. You may find that only 2 ppm of silver was released. Most of it coats the electrodes. You will find very little change in the conductance of the dw. Remove the electrodes and place them in a fresh jar of dw. Leave them overnight. Look at them the next morning. There will be no change in the black deposit. Perform the thermal test decribed above. You will find the black deposit turns gray as the temperature goes through 60C to 80C. That is the signature temperature for silver hydroxide. No other silver compound decomposes at such a low temperature. If the silver hydroxide were soluble, it would have disappeared in the fresh jug of dw overnight. It did not. This shows that silver hydroxide is insoluble, and it does not change to silver oxide. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I have proven that your references are wrong, and silver hydroxide does not spontaneously change to silver oxide. Therefore, as I have stated, you cannot produce silver oxide by electrolysis. The silver ion concentration is the most important part of colloidal silver. A weak solution may be ineffective in combating today's virulent pathogens. The current silver ion generators do not produce a high enough concentration to be useful in fighting them. If you want to learn more how to get the highest silver ion concentration possible, visit my forum at http://health.groups.yahoo.com/group/silvercentral/messages You are most cordially welcome to join. It is free. I will post a copy of this on my forum. I will also post a reply to your previous post as soon as I complete the documentation for the MiniCell cs generator. Thanks, Mike Monett SilverCentral -- The Silver List is a moderated forum for discussing Colloidal Silver. Rules and Instructions: http://www.silverlist.org Unsubscribe: <mailto:silver-list-requ...@eskimo.com?subject=unsubscribe> Archives: http://www.mail-archive.com/silver-list@eskimo.com/maillist.html Off-Topic discussions: <mailto:silver-off-topic-l...@eskimo.com> List Owner: Mike Devour <mailto:mdev...@eskimo.com>
