Ron Hackley wrote: > Marshall Dudley wrote: > > Marshall, this is really interesting! I use stirring and have very > little build-up (my "sludge" appears to be pure silver, not an oxide), > but I'd like to make my CS faster without having to heat the water (I > decided to stop microwaving the water until I get done with a bean > growing test and see if beans grow worse or not when watered with > previously microwaved water v/non-microwaved). > > How did you arrive at v/f=150 as being optimum, at least for your setup? > What qualities of your CS were you testing? What is your preferred > voltage, electrode seperation, quantity of water, temperature, current > cutoff, submerged electrode surface, whatever you're willing to tell? >
By varying the voltage and water flow rate and measuring the particle size (relative only) with a scanning spectrophotometer, and speed of production a secondary consideration. Electrode separation is about 1.75" and the electrodes are inserted in quartz insulating tubes and submerged. The amount of electrode exposed will develop voltage inversely with the amount of exposed electrode. I found 10,000 volts to be optimum (actually 9,000 to 11,000 is a pretty flat optimum ). Below 9,000 volts the particles start getting bigger, and above 11,000 volts the production rate drops off, and system becomes unstable. By unstable, I mean that at lower voltages a slight increase in voltage will give an increase in conduction, bringing voltage back to the operating point, but at the higher end, an increase in voltage will result in an increase in resistance, further increasing voltage, so without continuously varying the flow rate or amount of exposed electrode, the operating point will quickly move toward 15,000 open circuit volts, and virtually no production. > > Above you said ".2 Hz or... 10 seconds or so.". I sometimes get so > confused by this when decimals appear, but if .2Hz is a full cycle (360 > degrees) then wouldn't there be a full cycle every 5 seconds, hence each > electrode would be at one polarity or the other for 2.5 seconds? Or did > you mean every ten seconds? Could you please restate this for me:-). You are correct. My mistake. Mind you that that value is an extrapolation from my experience at 10K assuming a linear relationship. I do think that this is really oversimplification, and once a minute may be optimum. Diffusion rate is not linear with voltage at the higher voltages, plus in the HVAC system there is significant stiring due to the high energy. Marshall -- 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]>
