CS>Re : CS>best pppm of CS to make and use
From: sol
Date: Mon, 8 Nov 2004 13:38:18
http://escribe.com/health/thesilverlist/m74858.html
Hi sol,
Thanks for replying and explaining your procedure. Unfortunately, I
was expecting a slightly different answer. I thought you were
turning the cs generator off for several minutes to let the ions
reach a uniform distribution, then turning it on again to add a
small amount of new silver to the solution before the Nernst
diffusion layer had a chance to build up again.
This would work, but it would be very tedious to do it manually. A
better idea would be to add a simple electronic timer to turn the
current on and off.
> I just use my silverpuppy generator with the auto-shut off switch
> in bypass position. It seems to me there is some correlation
> between the uS reading and the ppm. Even if it isn't 100%
> accurate, it is close enough for my purposes.
Yes, there is a correlation between uS and ppm. I have posted it
numerous times. Ivan Anderson measured the ppm using an Ion
Selective Electrode and the conductance using a conductivity probe,
and found 1uS = 1.08ppm:
http://escribe.com/health/thesilverlist/m14498.html
I combined his data with Frank Key's, and found it averaged to
1.0074, which is close enough to 1 uS = 1 ppm for our needs:
http://escribe.com/health/thesilverlist/m63151.html
Finally, Ken posted the results of an experiment with baking soda.
He ran 1 milliamp for 2 hrs and 41 minutes, and found the cs
increased by 22.8 uS. I ran the Faraday calculations and found the
expected increase was 22.83 ppm, almost exactly what he measured:
http://escribe.com/health/thesilverlist/m71961.html
This confirms the relationship between uS and ppm is 1 uS = 1 ppm.
However, any contamination or problems with the dw would cause an
error, as it would in any measurement involving conductance. But we
need to ensure these issues are solved anyway.
> For topical use I don't care if the EIS is yellow. I have been
> able to get it up to about 60 ppm (I believe Ken has said he has
> gone higher). The PWT uS reading drops rather dramatically and
> quickly once the gen is turned off.
You are measuring conductance with current applied? I don't think
you can do that. You need to shut off the current and let the ions
diffuse to an even concentration. This may take 1 hr or more, maybe
less if you stirred it. But any measurement with current applied is
meaningless.
What is the uS reading a day or so after the current is turned off?
> Probably because particles are forming as the EIS stabilizes?
Partly, but mainly because the ion distribution is not uniform
throughout the solution.
> After it sits for weeks, it drops a bit more. The silver is in
> there, though :-), my opinion, even if in a form that doesn't have
> conductance.
(Sigh) Yes, the silver is there. Unfortunately, it is also in a form
that is useless to us. It is mostly oxides, which are inert and have
no biological activity. This is explained in my analysis at
http://escribe.com/health/thesilverlist/m74754.html
> Theoretically you could run the gen until you had black sludge, I
> think. It just depends on how long you want to let a batch run.
It really doesn't matter. As I mentioned before, as soon as oxide
formation begins, the voltage across the cell stops changing. This
means that any further ions added to the cs are converted to oxides.
These are inert and have no biological activity. They won't kill
bugs. It is a waste of time and good silver to generate them.
> I can run a pint, and time it if you want some approximation of
> time to uS?
Yes, of course. Just use the Faraday equations.
> sol
Thanks, sol. I see we still have a lot of work to do:)
Best Wishes,
Mike Monett
--
The Silver List is a moderated forum for discussing Colloidal Silver.
Instructions for unsubscribing are posted at: http://silverlist.org
To post, address your message to: [email protected]
Silver List archive: http://escribe.com/health/thesilverlist/index.html
Address Off-Topic messages to: [email protected]
OT Archive: http://escribe.com/health/silverofftopiclist/index.html
List maintainer: Mike Devour <[email protected]>
