At 12:23 AM 8/29/02 -0400, you wrote: > >The presumption of those first batches I ever made being low PPM yet large >grey colloids comes from the recognition of the batches appearing >clear-to-milky yet eventually several batches "silvered" the clear glass. I >believe only large grey colloids will do that. Yellow colloids will cause >clear glass to go golden over time- if enough batches are made in one >container. >Johnny Silverseed ### Or if one very deep yellow batch is stored in that container for a long time. What you are descibing as silvering the glass is a process akin to electroless plating where a thin conductive surface gets established on an otherwise nonconductive surface and the coating is plated thicker and thicker as the process continues. This is done on purpose when plating the through holes drilled in a circuit board to establish an electrical connection between the two sides of the board. The initial conductive surface is chemically deposited on the fiberglass and the final surface is electroplated to a prescribed thickness. [also, see bronzing baby shoes] In the CS process, this happens when the electrodes are too close to the container, there are no water currents to suffiecient to prevent deposition and a track of ions and particles energetically collides with the container getting stuck there. It's similar to the ion depositing [I forget the exact term?] process of making mirrors except that mirror making now is accomplished by ion emmission bombardment in a vaccuum onto statically charged glass. [much like modern powder coating is done as a painting process]
I believe the very large grey "chunks" are a form of unstable silver hydroxide and/or are the result of silver becoming trapped on the surface tension of hydrogen bubbles. They form on the hydrogen producing electrode and can fall off into the water. It they do so slowly and continuously, it can form a semi solid, semi conductive coating on the bottom between the electrodes for more silver to plate onto. Remove it. It will eventually short out your entire process and waste a lot of silver. Prevent it with some sort of stirring and a greater distance between the electrodes and the container. Similarly, when the electrodes are removed from the water, some of the silver can be transferred from the surface tension of the hydrogen bubbles to the surface tension of the water and form a silvery "floater". A bubble [hydrogen/water interface] has the same surface tension characteristics as the air/water interface. If the surface of the hydrogen bubble is not so coated as to prevent it from eventually popping, when it does pop [disburse], it will release a small particulate mist of colloidal particles very much similar in appearance to the so called "ion cloud". If you leave the electrodes in the water for a while after removing power, you can see this happen...and you'll get a more pronounced TE. I don't know the size of these particles, but they never seem to settle out. I suspect they are identical to the particles in the white "ion cloud", in fact, were once part of it and got re released when the trap dissolved. If the trapped particles get too compacted on the bubble, it forms a stable semi conductive structure...a chunk...that just sits on the bottom if it falls off. [can be filtered out] All of these effects can happen all at once with a variety of results. Ken >Ode Coyote writes: > >> >> Could you tell us how you managed to do that [low PPM solution of large, >> grey >>>colloids] and how you could tell that you did? >> >> Have you ever made a deep yellow CS, left it in a clear glass container for >> several months and poured it out into another clear glass container, then >> looked at the container and the poured out CS? >> The decanted CS will be colorless, still have a TE and register pretty >> much the same as before storage on a conductivity meter. >> The old container will have a yellow coating that the addition of a few >> drops of H2O2 will instantly dissolve with all color vanishing. >> Why did the yellow particulate stick to the glass, yet not settle out? [a >> matter of mass and relative charge in a thermally energetic Brownian >> environment, "methinks"...high mass/low relative charge = collision with >> and adhesion to the glass] >> Ken >> >> >> [snip] I'm sceptical on clear silver if for no other reason than as a >>>novice I was making what I thought was clear sol;ution onlyu to become >>>educated and find out I was making a low PPM solution of large, grey >>>colloids...the cause of agryria. [snip] >> >> >> -- >> 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: silver-list@eskimo.com >> >> Silver-list archive: http://escribe.com/health/thesilverlist/index.html >> >> List maintainer: Mike Devour <mdev...@eskimo.com> >> > > >
