Frank; Silver oxide is not stasble at room temperature.
"Ole Bob" Frank Key wrote: > Ken wrote: > > > This is called plateout or electroless plating where a certain amount of > > metal sticks to non conductive surfaces. > > Ken > > When the water is evaporated from a highly ionic silver solution the > resulting residue is silver oxide. > > The explanation below was reproduced from the FAQ on www.silver-colloids.com > > What happens to the silver ions in solution when the water is evaporated? > > Silver ions in a solution cannot exist without water, so when the water is > evaporated the silver ions (cations) must combine with an available anion to > form a compound. The predominant anions present in a silver colloid solution > are > hydroxide and carbonate. The compounds thus formed are silver hydroxide and > silver carbonate. Silver hydroxide is unstable and reduces to silver oxide > and hydrogen. The silver carbonate will reduce to silver oxide and carbon > dioxide. > The final compound that remains is silver oxide. > > This process begins as a single silver ion is forced to combine with a single > anion forming a single molecule of the compound. The molecule has no ionic > charge and therefore no repulsive force. The lack of repulsion causes the > molecules to be attracted to each other by van der Waals' force of attraction > which causes them to aggregate and form small particles of the compound. The > size of the particle growth is limited by the reduced mobility of the > molecules as the water evaporates. What remains is particles of silver oxide > whose diameter is 1 - 3 nanometers. It is these particles which predominate > in TEM images made of silver colloid solutions which have a high ionic > content. > > 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]>
