Thanks Ivan, give me time to ponder. James Osbourne Holmes [email protected]
-----Original Message----- From: Ivan Anderson [SMTP:[email protected]] Sent: Saturday, October 02, 1999 5:15 AM To: [email protected] Subject: Re: CS>Conductivity Hi James, The valence of an ion refers to the number of electrons gained or lost. If an Ag+ ion encounters the cathode, or negatively charged electrode, and the potential is greater than 0.8 Volts, then it will accept an electron and become a neutral Ag metallic atom until it is subjected to enough energy to change this state. The 10 kHz AC potential of the conductivity meter applies the happy principle that the electrolysis of the sample caused by the first part of the AC cycle is undone by the second half. Ivan ----- Original Message ----- From: James Osbourne, Holmes <[email protected]> To: <[email protected]> Sent: Saturday, 2 October 1999 04:10 Subject: RE: CS>Conductivity > Hi Ivan et al, > > If the silver "ion" has a positive charge, which is a "valence", and it gets an electron from an electrode, why does it not just keep it? > > James Osbourne Holmes > [email protected] > > > -----Original Message----- > From: Ivan Anderson [SMTP:[email protected]] > Sent: Thursday, September 30, 1999 2:16 AM > To: [email protected] > Subject: Re: CS>Conductivity > > Yes. If this what you mean James :-) > > Yes we have a soup of water molecules, a very small amount of which are > ionised into OH- and H+, plus impurities. > However the clumps of silver atoms in the water have lost one or more > electrons due to the electrolysis process, and so float around carrying > an electrostatic charge. > When we dip a couple of electrodes in the solution and apply a potential > difference (generally an 10kHZ AC signal to avoid electrolysing the > sample) the charged particles are caused to move towards the electrodes, > and their ability to accept electrons or donate electrons allows a > current to flow in the meter, blah, blah, blah. > > I should think the impurities in the water probably far outweigh the > impurities in silver electrodes .999 or higher. > > Ivan. -- 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] List maintainer: Mike Devour <[email protected]>
