CS>Generous EIS usage From: Matthew McCann PE Date: Mon, 16 Aug 2004 15:54:25 http://escribe.com/health/thesilverlist/m72553.html
Hi Matthew, > Hello, Mike, > There may several ways to make LVDC EIS at higher concentrations: > One, evaporate a batch at low temperature (< 100 degrees > Fahrenheit.) Yes, that works very well, but it sure takes a long time:) > Two, remove the ionic fraction by using a Graham dialyzer. What > remains is the particulate fraction, which does not contribute to > the constraint imposed by the solubility equation. Stricty > speaking, the particulates are not dissolved - they remain in > suspension by thermal agitation. They will separate out if the cs is frozen. I use very low current density - 100uA/sq.in. or less, so there is very little oxide formation in the Nernst layers. So I get mostly ionic, which is what I am after. It the most effective, but I am limited to ~22ppm. > Third, re-brew the batch after a 12-24 hour relaxation time, > during which conductivity decays very noticeably. Yes, I have tried that also. I can push it to perhaps 28 or 30 ppm, but it quickly turns yellow. As you mention below, a small amount of H2O2 (about 70ppb) will turn it clear overnight. > It is reasonable to suppose that during this post-electrolytic > conductivity decay transient (P.E.C.D.T.?) dissolved silver ions > are plating -out on the particulates. This restores the solubility > of the brew tore-electrolysis without losses entirely to > sedimentation, plate-out on the vessel walls, and/or flotation of > silversol by surface tension at the air-liquid interface. The > batch grows yellow as such brewings are repeated, but adding H2O2 > at the end can clarify the the batch at the end. Losses from > sedimentation should be strained out between the electrolysis > stages and their following PECDT stages. You lost me here, but I think I get most of your drift. > Best regards, > Matthew All good suggestions, but I need to find out how Ken and Trem get to 40 - 50+ ppm! Best Wishes, Mike Monett -- 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] Silver List archive: http://escribe.com/health/thesilverlist/index.html Address Off-Topic messages to: [email protected] OT Archive: http://escribe.com/health/silverofftopiclist/index.html List maintainer: Mike Devour <[email protected]>
