Hello Dan

Yes I fully understand that, with a current controlled generator, its hard to make bad CS even in the worst water. But I wanted to see what happened when all the wrong choices were made. I'm quite sure this is why argyria cases like Paul Karosan , Stan Jones, and a few cases here in Australia, are now appearing. These old methods are still being used. Shortcuts are still being taken. I'm continually asked if rain water (from a tank), mineral water, spring water, 'filtered water' etc is good enough. It's not.

David


Subject:
Re: CS>'3 nines' equals about 764 ppm in ten minutes.
From:
Dan Nave <[email protected]>
Date:
Sun, 23 Dec 2007 11:09:09 -0600
To:
[email protected]

To:
[email protected]


Very interesting.

What you are showing is that you can make a very strong brew in water (with added salt) in a short time.

I would rather record the actual current every few minutes and graph and calculate from that as you can get a better idea as to what is actually happening. If you have Microsoft Excel you can use the Faraday calculator to do the math.

My purpose was somewhat different. It was to show that you could make a less risky and still useful product in tap water, if necessary.

I will have to do some more detailed experiments.

Note that if you have a CS maker with current control you will never get more silver than the current limit will allow which is approximately:

17ppm at 1ma in 1 cup of water for 1 hour or

.28ppm at 1ma in 1 cup of water for 1 minute.

So with a 1ma current limit, go ahead and brew for an hour to get 17ppm (in one cup).

Otherwise, using a 9 volt battery with silver electrodes for 1 minute in tap water in about a 16 ounce glass (with manual stirring) would probably give you something that you could use in a pinch (without salt). This might be useful for sterilizing water or treating diarrhea.

Dan