I Anderson wrote: > Marshall, > > You seem so sure that silver oxide exists in CS solutions ...why? > > There is little, if any, molecular oxygen atoms in d. water, and none > produced at the anode,
Hun? Electrolysis produces oxygen at the anode. http://webhome.idirect.com/~famistew/hydrogen/electro.htm > if silver is being ionised there as silver > ionises at 0.79V as opposed to the 1.6V (or there abouts) required to > rip oxygen from water molecules. > In the later stages of production, if the current is allowed to go way up, I have seen bubbles produced at both electrodes. If hydrogen is being produced at the cathode, then 1/2 as much oxygen HAS to be produced at the anode. You can't produce one without the other beyond the absorption level of water. > > It is my understanding that the colour of CS solutions is a result of > the particle size. > Absolutely. > > The greyish build up on the cathode is simply reduced silver ions, ie > silver metal fluff. I think there is silver oxide when the process is run too long. First when that happens the CS will get a bitter taste which I associate with being alkaline. With silver, hydrogen and oxygen as the only elements present, silver oxide and silver hydroxide are the only compounds I know of that can do this. Theoretically silver hydroxide could be made at the cathode, and silver oxide at the anode, where there is lots of free monoatomic hydrogen or oxygen. Silver hydroxide spontaneously degrades to silver oxide rather quickly, so I believe that there can be trace amounts of it present in CS that is "overdone", and that is what contributes the bitter taste. Marshall -- 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...@eskimo.com>
