Hi James, The electron never leaves the bulk silver, the ion leaves without an electron and returns to gain one. The electrons in the D orbital are generally free to roam throughout the metal, indeed the Jellium model considers some metals to be ions in a sea of electrons (sort of)
----- Original Message ----- From: "James Osbourne, Holmes" <[email protected]> To: <[email protected]> Sent: Saturday, 24 March 2001 03:39 Subject: RE: CS>Solubility of silver in water. > Hi Ivan, > > Where does the electron come from, and what balances the pH of the water? > > JOH > > -----Original Message----- > From: Ivan Anderson [mailto:[email protected]] > Sent: Friday, March 23, 2001 4:16 AM > To: [email protected] > Subject: CS>Solubility of silver in water. > > > There is a constant, but small reaction, at the silver metal/water > interface: > Ag + e <----> Ag+. > Thermal currents and diffusion will dilute the concentration near this > interface, so that in order to maintain an equilibrium more silver will > dissolve. > > http://www.burnsurgery.org/Betaweb/Modules/silver/section3.htm > (well worth reading, if you are into silver ions) > 'This unique physical structure, in combination with the oxygen > atoms/molecules that are trapped in the crystal lattice, contribute to > the enhanced solubility of the films which continue to release silver > until the concentration in solution reached 66 mg/L a level that is 50 > to 100 times higher than is expected from typical bulk pieces of silver > metal. Handbook of Chemistry and Physics, 55th ed., CRC Press, > Cleveland, 1974, pp B-134.' > > This passage would seem to suggest one can expect a concentration of > 0.66 - 1.32mg/L to be eventually reached in solution. > > Ivan. > > ----- Original Message ----- > From: "Frank Key" <[email protected]> > To: <[email protected]> > Sent: Thursday, 22 March 2001 08:35 > Subject: Re: CS>Fwd: Dr. Jon's Special Silver FAQ's 3-19-01 > > > > Dean wrote: > > > > > I see. So what is it that increases the conductivity of the water > > > after a few days when a silver ingot has been added? > > > > If you believe that silver is dissolving in water, then try a simple > test; > > > > 1. Using a lab balance that reads to 5 places in grams, determine the > weight > > (mass) of a small pure silver object. > > > > 2. Place this object in pure DI water for a period of time (hours, > days, etc). > > > > 3. Remove the object and again weigh it. > > > > This will tell you if you are dissolving silver in water. > > > > > If silver particles don't change the conductivity, then the silver > > > must be going into the water as ionic silver. > > > > Since silver is not water soluble, then silver ions are not being > added to the > > water. The change in conductivity is probably the result of the > addition of > > absorbed gasses. > > > > To test this theory, draw some pure DI water and measure its > conductivity. > > Place part in an open container, and part in an evacuated container > (vacuum or > > filled with an inert gas such as argon). > > Let both containers sit for about a few days, then measure the > conductivity. > > > > The increased conductivity of the open container demonstrates the > absorption > > of gases. > > > > > I admit that my chem classes in college were some time ago, but I > have > > > been under the (probably erroneous) impression that "to dissolve" > > > meant to "make ions" of whatever's being dissolved. > > > > Indeed, dissolving does cause ions to be added to the solution. The > problem lies in the fact that silver is not water soluble. > > > > The only way to dissolve silver in water is to pass an electric > current through > > it. This forces the removal of an orbital electron from an atom of > silver changing it to a silver ion which is water soluble. > > > > frank key > > > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.237 / Virus Database: 115 - Release Date: 08/03/2001 > > > -- > 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]> > > --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.237 / Virus Database: 115 - Release Date: 08/03/2001
