Dear Sam, Thanks, that does help. Thermal stirring is the only game in this house at the moment. I kinda like to do things myself, and this is better than nothing. Maybe it will work better with the electrodes spaced a little farther apart. It is nice to get the info about how many square inches I have submerged, I had not figured that out yet.
Thanks for the offer of the Faraday calculator, but I am not set up for excel, I am running a standard imac with only the mac software for now. I can do the calcs fine, though, it is a simple formula when the current stays constant. _______________________________________________ Hi Kathryn The first batch was OK but you didn't run it long enough. I would estimate 24-30 hours using .23 mA per quart with electrode spacing at 2 inches. Using 1 mA would take 6-8 hours (estimated) Thermal stirring doesn't work well with quart batches unless its a short fat jar, the stirring action is only good for 4-5 inches upward. Although It might work well with low current and electrode spacing of 2 inches. Most of my experimentation has been done with electrode spacing of 1.5 inches or less. 10.5 inches of 10 gauge wire is about 3 square inches of total electrode so your safe up to 1.5-2 mA of current if you want to go that high but I suspect you will need a better stirrer or a short glass like a pint jar. You could bend your electrodes in a u shape to fit the height or the jar if needed. Tyndall effect shows particles, not ions. Most lvdc generators produce 80-85% ions and the rest particles. If your using a laser to show Tyndall effect you want to see a smooth Tyndall effect, not a real grainy looking one with big sparkles with them. More important though is if the cs stays clear after a day or two. If it goes off color like yellow or gray-gold then the particle size has increased. Hope that helps. I have a nice Faraday calculator built into and excel speadsheet if your interested. Sam L. On 12/14/06, bs clayton <kl_clay...@yahoo.com> wrote: Thanks for the reply. I was making a quart, and the current varied a little bit between .2 and .3, it seems to me the average was .23mA- I can't find my production notes, just my calc, and that is what I wrote in the formula. The electrodes are fine silver wire 10 gauge, 5& 1/4 inches submerged, spacing is 2 inches. I am using a Frito bean dip can to hold the light similar to what you described. I think what I'm going to do next is use half of what I made before, and fill it up with distilled water, then crank it up to 1mA, see if it goes faster this time- and what I end up with ppm-wise. I read some discussion of particle size being related to Tyndall effect, and when I started the Tyndall was what I used to tell if it was ok. Now maybe that means the particles are larger? Is there a consensus about whether Tyndall is important in making this stuff? I was trying to keep the particle size down, and the other stuff to a minmum (silver oxides and like that). Kathryn ________________________________________________________ Hi Kathryn. I dont know if this got posted to the list or not so I will repost. Need more info. What size batch are we taking about? What was the current .2-,3 or ,275 mA? What are you using for Electrodes and what size. Whats the spacing on the electrodes. At .275 mA I would run the batch 24 hours per quart with electrode spacing of 1.5 inch's using a total of 12 inch's of 12 gauge wire (6 inch's per electrode).. If you take a peanut can , drill a one inch hole in the top center and a one inch hole in the side, put the light bulb in the hole in the side and the cs on top, this will work good on a short glass jar. The thermal stirring wont go above 5 inch's or so. The batches I make = 50 ppm or so on the Faraday calculations but some of the silver is left on the electrodes or on the glass container. The cs stays clear most of the time. Faraday calculations work but their are many of other factors involved to produce a good CS. Stirring is very important as is current control per sq inch of electrodes. Ode from silver puppy sells a magnetic stirrer of which has solved many of my problems, I have used very low current before with somewhat good results. I prefer to use 1 mA of current per 12 inch's of 12 or 14 gauge wire or .5mA per square inch of total wet electrodes. Hope this helps. Sam L. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- 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: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour <mdev...@eskimo.com>
