Perhaps a good way to accomplish that would be to simply drain the cell slowly out the bottom into a storage container with a petcock. When the cell is empty, the CS is done and the drain rate determines PPM. Ken
At 05:18 PM 10/17/00 -0400, you wrote: >Hey Bob. You might give this a try. Use constant voltage AND current with >stirring. Basically make it so the electrodes can be removed from the water >incrementally, and slowly pull the electrodes out of the water as current >tries to increase. Once calibrated you could make CS of whatever ppm you >want by marking on the container at what point the electrodes are at when >you finish. > >Here is my thinking. Increasing voltage, with all else unchanged, tends to >reduce particle size because the higher gradient pulls the particles away >from the anode more rapidly so the ppm does not build up as much near the >anode. > >Higher current increases particle size, due to increase in particle density >near the electrode. That one reason that if you use constant voltage the >particles tend to get large rather quickly once the current reaches a >certain point. > >But if you use constant current, the voltage still drops off toward the >end. This I believe will increase particle size more than if the voltage >could be maintained with the same current. That can be accomplished by >removing active area from the water. > >Now, it is true that the current density will go up as you extract the >electrodes, which should make larger particles. However the voltage >distribution between the electrodes goes from being almost linear between >the electrodes, to having the highest gradient near each electrode, because >the electrode area has dropped, and the bulk conductivity of the CS has gone >up. I believe this increased gradient near the electrode will more than >compensate for the higher current density. > >Anyway, you might want to give it a try. I don't know about LVDC, but it >seems to work that way with HVAC. > >Marshall > > > >-- >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 >Silver-list archive: http://escribe.com/health/thesilverlist/index.html >List maintainer: Mike Devour <mdev...@eskimo.com> > >
