I thought message I sent elsewhere would be useful here! Joe, if you calculate the resistance of the water at the start (Voltage in volts divided by current in Amps -for those that don't know), and divide this by the resistance of the water at the end... then multiply the result by 1.3, you will have a fairly good estimate of the concentration of silver ions.
In the run below: start = 75V/0.00377A = 19.9KOhms end = 19V/0.00599A = 3.2KOhms 19.9/3.2 = 6.22 6.22 x 1.3 = 8.1ppm as silver ions Maybe another 1 or 2ppm as metallic silver. This formula might be of use to quite a few people... don't know why it didn't occur to me before! Ole Bob might like to refine the constant further, as he has documented more silver runs than anybody in the modern world. Regards Ivan. > > Hi from Joe: > > Did the following: > > 1/9/02 distilled H2O @ 74 F, short ckt current = 6.38 mA, supply > source = 172 + or - 2 Vdc, R = 26 K ohms [limiter] T = elapsed > time, min. Ve = electrode voltage Ie = electrode current > electrodes - 5 sq inches submerged on +, 6 sq " on -; spacing = 2.25" > continuous mechanical stirring > > > T Ve Ie > - 173 0 > 0 75 3.77 [calculated - analog meter stuck] > .5 73 3.85 " > 1 73 3.85 " > 2 71.9 3.88 " > 4 70 3.96 " > 6 69 3.99 [measured - & all following] > 8 67 4.03 > 12 65 4.13 > 15 64 4.24 > 20 60 4.40 > 25 58 4.47 > 30 55 4.56 > 35 52 4.67 > 40 50 4.74 > 45 48 4.81 > 50 46 4.95 > 55 44 5.03 > 60 42 5.10 > 75 36 5.33 > 90 31 5.51 > 105 27 5.57 > 120 25 5.71 > 135 23 5.72 > 150 22 5.73 > 165 21 5.77 > 180 20 5.95 [3 hrs] > 195 20 6.02 > 210 19 5.98 > 240 19 5.98 [4 hrs - variation due to 120 Vac changes] > 270 19 6.00 > 300 18.7 6.05 [5 hrs] > 360 19 6.02 > 420 19 5.96 > 480 19.7 6.02 > 540 19.7 5.97 > 600 19 5.99 [10 hrs - end] > > > What is your best guess at ppm concentration? > > Thanks. > > -------~-> -- 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]>
