The m^2/sv had me for a minute, that is for a voltage, instead of a gradient, so there is a v/m term which accounts for the square.
So if we convert to cm instead of meters we end up with this: 6.4X10-8 m^2, or 6.4X10-4 cm^2 per second per volt. So if you have 100 volts across 1 cm, the silver ions will move at a rate of .064 mm per second. Marshall Dan Nave wrote: > How about this? > From: > > http://www.tannerm.com/IonSpeeds.htm > > Ion speeds and conductivity-the Einstein and Stokes-Einstein equations > > Movement of an ion through a solution under the influence of a > potential gradient (electric field) is the result of the acceleration of > the charged particle in the field and the opposing forces of assymetry > and the electrophoretic effect. Thus the ion moves at a constant rate > determined by a balance of these forces. This leads to the definition of > mobility ui of the ion i. > > Ion mobilities at 298 K in aqueous solution > > Ion u0(m2s-1V-1) > > H3O+ 36.3 x 10-8 > OH- 20.5 x 10-8 > Li+ 4.0 x 10-8 > Na+ 5.2 x 10-8 > K+ 7.6 x 10-8 > Ag+ 6.4 x 10-8 > Mg2+ 5.5 x 10-8 > Zn2+ 5.5 x 10-8 > Cl- 7.9 x 10-8 > Br- 8.1 x 10-8 > NO3- 7.4 x 10-8 > SO42- 8.3 x 10-8 > > >>> Marshall Dudley <[email protected]> 1/12/2006 9:32:37 AM >>> > If you know the ion's mobility it can be figured rather easily from > the > voltage gradient: > > http://www.du.edu/~jcalvert/phys/elechem.htm and > http://www.ce-mag.com/archive/1999/mayjune/mrstatic.html > > The velocity of an ion is v = KE, where K is the mobility of the ion in > cm/s > per V/cm. > > So if you can find the mobility of a silver ion, it would be very easy > to > figure. I searched a little but was unable to find any mobiity > numbers, but > they are probably somewhere if you want to look long enough. > > Marshall > > -- > The Silver List is a moderated forum for discussing Colloidal Silver. > > Instructions for unsubscribing are posted at: http://silverlist.org > > To post, address your message to: [email protected] > > Address Off-Topic messages to: [email protected] > > The Silver List and Off Topic List archives are currently down... > > List maintainer: Mike Devour <[email protected]> >
