url: http://escribe.com/health/thesilverlist/m62868.html Re: CS> Anode weight From: Robert Berger Date: Tue, 30 Sep 2003 15:02:43
> Mike M. > To do this anode weight experiment is not as easy as putting it on > paper!! > I ran 2 gallons, Initial Ci = 7.1 uS/cm using the large anode > which I weighed before run and did not touch the scale adjustment. > Brewed 3.5 hours without current limit; pH =6.98; and Ag+ =13.6 > ppm, and there was no change in the weight of the anode. I guess > the initial weight of 126.9 gm was too high to be able to detect > the weight loss. [...] > I will replace the large anode with an anode that is 1/2" x 3.5" > wet and look for weight change. If I can't detect it then I will > have to go an Aero Space client of mine and use their lab balance. > (50 miles round trip) > I have setup a current limiter at 6.3 mA and will run much longer. [...] > "Ole Bob" I knew you would run into problems. You are right at the limit of resolution of your triple beam balance. A smaller anode may not solve the problem. You are still looking for a small change in mass. Your scale doesn't have enough resolution. You might try running the brew longer, but eventually you will start producing oxide that will stick to the anode and change the weight. You probably need a better scale. Perhaps there is a university or pharmaceutical supply company nearby that has a better balance? It seems silly to have to drive 100 miles to weigh 100 milligrams:) Maybe some amateur scientist has found a simple way to measure small mass changes in large objects. I'll try to find some time to do a search. If you do try a small anode, you might want to reduce the current to keep the current density the same as the original. If you do, the current regulator will probably come out of saturation and start producing constant current right away. This makes it easier to do the calculations, since you don't have to mess with integrating in WPlot. If you want me to help with the calculations, let me know. But it would be good if you gave Mercury a try. This program is amazing, and a great time-saver when you have to deal with calculations involving unit conversions. Why did the ppm drop from the original 38 to 13.6? Best Regards, Mike Monett -- 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>
