MM wrote: > At the high current density typical of most cs generators, the process starts making particles at about 10 ppm. This is confirmed by the Faraday equation and the salt test, which gives a weak, pale blue dispersion. The silver oxide coats the electrodes with a black film, and black deposits are formed on the sides of the glass and appear on the bottom under the rods. So we know where the ions went.
>When the current density is reduced, the process can go to a higher ppm before it starts turning color. This is confirmed by the Faraday equation and the salt test. For example, at 87 uA/sq.in., I can easily make 19 ppm cs that stays clear indefinitely, even after freezing. The salt test shows a milky white dispersion. ______________ I pretty much confirmed this . Last week I did 2 runs using the same setup but with different current densities and times. I don't have the actual data in front of me but generally, I ran one batch at 1ma for about 3 hours and one at about .07ma for 24 hours. The currents were actually less since I calculated the resistors without regard to the resistance of the cell. Anyway, the 1ma batch showed a lot of buildup on the electrodes and gave a salt test that you really couldn't see at room ambient light but was visible as a light blue in a darkened room with a flashlight shining through it. The .07 ma batch had much less buildup on the electrodes and it also had a different quality. The salt test showed it to be a light blue in room light and substantially more color and cloudiness in darkened room with flashlight. It was at least "twice" as cloudy as the 1ma sample. Obviously, the salt test is a bit subjective, but it certainly seems to have merit. Dan -- The silver-list is a moderated forum for discussion of colloidal silver. Instructions for unsubscribing may be found at: http://silverlist.org To post, address your message to: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
