----- Original Message ----- From: James Osbourne, Holmes <a...@trail.com> To: <silver-list@eskimo.com> Sent: Tuesday, 28 September 1999 03:29 Subject: RE: CS>Standardization - A Call for Standards!
> What is the mechanism of increased conductivity of more Ag particles in the > water if they are all positively charged? I have assumed, "Silver is an > excellent conductor---about the best there is---so, more silver, more > current." On intuitive reflection, it seems that something else is > involved. It must have something to do with the negative counterions > which are balancing the silver charge. Does anyone know how this works > with some degree of authority? The conductivity of a liquid is in no way related to the conductivity of a solid. Many elements which are not conductive as solids are conductive as ions in solution. The conductivity of a solid is related to free electron mobility within its matrix. The conductivity in a solution is related to the activity of static charges throughout it and to the number of those charges (concentration). There is no conductivity in a solution without ions or groups of ions. Solutions of compounds which dissolve, but do not dissasociate into ions (sugar for example) do not conduct, nor do neutral precipitates... but they may do as solids (silver oxide for example). First year physical or general chemistry texts cover these subjects. > James Osbourne Holmes > a...@trail.com > > > -----Original Message----- > From: M. G. Devour [SMTP:mdev...@mail.id.net] > Sent: Monday, September 27, 1999 12:47 AM > To: silver-list@eskimo.com > Subject: Re: CS>Standardization - A Call for Standards! > > > [hanna's PWT] looks like the one. > > Ahh, good! Glad you think so. Saves you some money, too. > > > 0 - 99.9uS = 0 - 100 ppm as silver. > > It turns out (as far as I can determine) that ppm as silver is > > almost equal to the reading in uS/cm^2 in water. I don't know why I > > haven't noticed this before!!! > > Ummm, what's the effect of particle size on this relationship? Since > the conductivity is a function of charge carriers, if the silver is > individual atoms, maybe it's correct, but what about fairly large > particles? > > I do remember when I had some stuff tested that I was off by only 20% > or so... > > More to do! > > Mike D. > > [Mike Devour, Citizen, Patriot, Libertarian] > [mdev...@mail.id.net ] > [Speaking only for myself... ] > > > -- > 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 > > List maintainer: Mike Devour <mdev...@id.net> >
