Notwithstanding either of our asses Bob, I think my hypothesis might provide a fruitful avenue of research. I think this may be able to be investigated using PWTs to check the ppm rather than using more elaborate equipment. I also noticed that no maker/seller of CS commented on my assumption...
I personally do not have a dedicated place where I can leave my CS making setup in place and it takes a surprising amount of time to collect everything out of a drawer and set up on the kitchen counter in order to do it and then take it all back down again. Maybe I will be able to maintain a permanent setup soon. Also, I don't have a PWT yet, I'm sure I should get one, and I probably will, eventually. Also, I assume (unless you disabuse me) that most CS makers with automatic shutoffs (and I'm talking about Low Voltage DC setups with currents limited to about 1ma per square inch of electrode surface throughout this post...) monitor the effective resistance or conductance across the wet cell in order to determine when to shut the maker off. Whatever electronic method they use to determine this, they would have to shut down the process when the cell reaches a certain impedance. This would vary from maker to maker depending on the surface area of their electrodes and possibly some other factors. (Do they feel that the results with any particular CS maker is relatively consistent?) With this in mind, the last time I made CS I measured the "resistance" of the cell with my Voltmeter through the electrodes as they sat in the distilled water but with the power source disconnected. I also measured the resistance at the end of the process. It was interesting to note that at the end of the run I had quite a low resistance perhaps in the 20K ohm range (I don't have the data here) but with the polarity of the meter leads reversed I read a resistance approaching the Meg ohm range, I think it was .5M ohm. With clean electrodes at the start I *assume* that the resistance would be the same or nearly the same. Anyway, this would be easy to check. The point is, any crud or buildup on the electrodes is going to affect the process and perhaps affect the repeatability of results. And with different distilled waters there may be slightly different contaminants which would affect this. Perhaps regular intervals of cleaning would tidy up the test results. Incidently, does anyone have an ultrasonic cleaner? They could use one with a jar of clean distilled water to clean the electrodes between uses and even at intervals during CS making if they want to test the result of electrode crud on their process. Sorry, don't have one of those yet... Out of time... Dan _________________ you wrote: Hi Dan, I do not want to be factious but if we hyphenate the word assume we have "ass-u-me." I cannot make those assumptions, and to establish it would require several weeks of work. I do not have the time or inclination to do it, even though I have the equipment to do the testing. There appears to be several variables that we are not aware of, in making this "simple" product. Why is it that successive runs do not duplicate? This has plagued the making of EIS ever since we started. If someone wants to do the work, I will make a special test rate available for the project. However the project must be defined and adhered to. "Ole Bob" I wrote: For current limited processes, wouldn't it be correct to assume that, taking the point where current limit occurs as a reference point, the amount of silver generated up to the current limit reference point in any case would be equal regardless of the water used? Also, for any particular amount of time after the current limit reference point, the electrolysis would occur at the same rate in all cases regardless of water used, and the total ppm increase per hour would be the same? (Assuming distilled water within a normal range of variation) Dan -- 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: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
