Bob, The question of water quality has been discussed before, not in the least by your good self. I don't have a problem myself. I use purified water BP (British Pharmacopoeia) which must comply to a minimum standard, and I encourage my customers to obtain the same or equivalent. This is readily obtainable from microbiological labs or compounding chemists in countries where the BP standard is used. There is no doubt an American Standard equivalent.
The starting current is 0.05 mA However the seeding is a great idea, for those that have a DMM handy, and who cannot obtain a consistent supply of distilled water. Bob, could you try something for me. As you have different quality d. water available, and a conductivity probe, could you add the same amount of CS to each until the CS swamps the difference in conductivity in the d. waters. Thanks, Ivan. ----- Original Message ----- From: <[email protected]> To: silver-list <[email protected]> Sent: Monday, 13 September 1999 18:45 Subject: CS>Constant Current > Ivan and All; > > I have just finished the second run of CS using the parameters from > Ivan. > > I must report that Constant Current CS has the same problems the > constant voltage (batteries) > > ALL of the low voltage CS process have a water quality problem. > > The first run o 200 ml of Absopure DW which has an Rb of 145 k ohms (on > cc probe) (6.9 mS) came to .6 ma. current limit immediately and stayed > there. The Rb0 (at end of run) was 33 kohms and the ppm was 19.5. the > next day RBI was 37 k ohms. > > The second run was with Wal-Mart DW with an Rb0 469 kohms (2.1 mS). The > current started out at .1 ma and built to .6 Time unknown, had to leave > the run on a timer. The Rb0 was 47 kohms and the ppm was 10.0. > > So what ever system you choose to use you MUST seed the DW with CS to > get the same starting current for each brew. > > If you donut do this you will wander in never-never land. > > I find it incongruous that I have seen nothing on this list discussing > the problem. It is not mentioned somewhere in the literature??? > > The high voltage people know their problem, but the low voltage people > apparently have not addressed it. > > Build the one cubic probe. It will solve a lot of your problems. > > "Ole Bob" > > > -- > 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] > > List maintainer: Mike Devour <[email protected]> >
