Hi Bob, I've been following your recent work on current levels with great interest. Some may recall that about a little over a year ago, Ole Bob tested some samples of LVDC CS I made and compared his ppm results to the predictions from my Excel spreadsheet's calculations
http://www.silvermedicine.org/faradaycalculator.html The calculator's results were off by about 20% to 45% depending on the batch, due to heavy plating on my cathode. At the time, you and I couldn't think of a way to mitigate the plating problem. Unless I'm mistaken (which my wife says happens frequently), that has now changed. >From what I've gathered from your recent posts, my current limit was largely to blame. I was limiting current to 5.5mA. I use a very large anode, so current density was well below 1mA, but it appears absolute current is the key to plating (treeing). Your recent work has led me to experiment with lower limits, and with a limit of 2.75mA, I'm seeing very minor cathode plating compared to the higher limit. I'd like to run some more samples for testing, with current limited to values ranging from 1mA to 2.5mA, and see how the calculator fares with these. My goal has always been accuracy within 10%. If theses tests succeed, we can offer home brewers a way to estimate the ppm of their CS for nothing more than the cost of a $5 multimeter. What do you say, Ole Bob? __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - File online, calculators, forms, and more http://tax.yahoo.com -- 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]>
