Roger; When I used the aec method for CS it generated up to 80 ppm of NO3 with ia one big NO NO!. I solved the problem with the use of a SO2 blanket in the freeboard of the brew cell.
I can make high ppm (25 in 2"30") with about 0.8 ppm of NO3 using 12 kv and a 7/16" arc gap. It appears that the amount of submerged electrcode is relative unimportant. One person uses two 3" x 6" electrodes. I have used two 1" x 5 1/2" electrodes and also two #14 wires shielded with glass and only the lower 2 1/2" of silver exposed. According to Dr. Bill Biagilio the FDA limit is 20 ppm of NO3, If the conductance goes over about 100 uS I d not use it even though it is crystal clear and with a weak T.E. Genetally the conductance is 50 to 80 uS as measured with a one cubic centimeter probe. The T.E. is always weak to very weak. My experience with the cone method has been very unsatifactory as I could not get more than 9 ppm without yellow or fall out, or bright T.E. "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]>
