Hi Ya'all, 1). Constant voltage CS generation is plagued with current run-away if not current metered and supervised. When the current starts to run away the
2). With constant current the primary consideration is current density on the silver anode. With the current regulated to one milliampere per square inch of wet electrode then 10 to 15 ppm with a weak T.E. is possible., and it is very easy to scale up to larger volumes of DW. 3). My original work with constant current was with 14 oz. of DW in a 16 oz clear plastic SOLO cup from the paper department of the local grocery store. The cell parameters were 2 1/2" electrode spacing using #14 Ag .999 purity, with 5" of wet length. (this is one square inch of wet surface) The mechanical stirrer was between the electrodes to get a maximun rotating sweeping liquid flow to move out the silver coming off of the anode. The DC supply was 26 volts and the regulator was set for one ma. 4). To scale up to one gallon, divide 128 oz/gal. by 14 oz. This yields a scaling factor of 9.14. To maintain the same conditions as the original model then one needs 9.14 square inches of wet anode. If you choose to use sheet material remember that it has two sides and two edges. Set your current regulator to 9 or 10 ma. and you are in business. This is by no means the ultimate in design but will allow one to make a gallon of 10 to 15 ppm CS that is crystal clear and will be stable and have a vey weak T.E., in about two hours. I am sure others have better ideas but I have data plots on what I have done. "Ole Bob" -- 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] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
