Hi David:
I haven't had a need to try to concentrate EIS, but keep in mind that the
silver in solution doesn't turn brown, it's only light refraction.
The problem with concentrating EIS, is that you have to deal with
agglomeration, which defeats the purpose of creating a highly oligodynamic
product. In my opinion, that is the entire purpose of working with EIS.
When particles are "too large" (being a relative term), and you add hydrogen
peroxide, rather than atomizing the silver particles, an oxide forms
(contrary to some fancy opinions, it's easy to demonstrate), and the
particles fall out of solution. If you set aside your container for a week
or so, you'll notice a thin or thick coating of greyish silver at the bottom
of the container. Depending upon the quality, concentration, and amount of
H2O2 used, the silver that remains with and in the solution will be a pretty
good product. If you start off with a quality product, you can even use
H2O2 to create a completely ionic solution, with no tyndal.
This is one of the problems I use to quality check my own batches. If I add
hydrogen peroxide to a fresh batch of EIS, and the solution turns dark, it
indicates a lower quality end product, even though you can return the
solution to clear with the use of H2O2. This is usually due to problems
with electrode degredation (or in some cases, electrodes being too close, or
batches being run to long, water not being pure enough, etc. etc.).
Contrary to Frank's opinion on the use of TEM to study silver-based
products, his opinion is not shared by anyone else in the scientific
community (again, this is not my opinion, but the opinion of the scientific
community at large). While it is true that TEM has limitations (which Frank
is quick to point out), the tool isn't used to definatively characterize
attributes. It's main advantage is in comparative analysis. And what TEM
can demonstrate through comparative analysis, is an attribute that has been
proven to be very important in electrically isolated silver products:
particle dispersion. While TEM's revelation of particle dispersion may not
be definative due to the process of drying a solution in order to photograph
it, it has a direct correspondence to the direct antimicrobial power of any
given EIS product.
The greater the particle dispersion, the greater the greater the
antimicrobial power of a given product is... and you cannot get great
particle dispersion with a solution filled with larger particles.
So while there are those who use highly concentrated products, from a few
hundred parts per million to a few thousand parts per million, and while it
is true that in those high concentrations, the direct antimicrobial power of
the product is impressive, once you equalize the concentrations, the
performance is dismal.
I've long been told by users of other CS products that our "brew" is far
superior to anything they'd been using over the years. I'm always quick to
point out that there are products that are even better, but you can't get
them for free (we don't sell silver, but we do give away alot).
If you're looking for highly concentrated silver, I don't think EIS is the
way to go. The higher concentration products I've attempted to make
(upwards to around 50 PPM), are not as effective as the lower PPM high
quality batches.
Using a minute current over a longer period of time, like Mike M. suggests,
may be the way to go... I mentioned this in an article I wrote (in
passing), about this process somewhere around 2002-2003, because some people
I've corresponded with-- individuals more on the "fringe"/"esoteric" side of
things, have long believed that brewing silver for a week or more with an
extremely small amount of current produces a very unique and useful product.
Although most of the current experts I consulted with at the time believe
that you can get a higher concentration of EIS, none of them believed it was
possible to get a higher quality end product; one that was more effective.
It's possible that Mike M. is correct, and that a high quality product can
be produced at 40 uS using his simple process. That might be an ideal
solution for the home brewer.
Silver particles are NEVER stable in the presence of H2O2... that's the neat
thing about using H2O2. I use peroxide testing strips to be certain that at
least the majority of reactive H2O2 is gone from the EIS before letting
anyone use it; otherwise, one needs to disclose that there is active H2O2 in
solution, although when needed, I don't hesitate to use EIS with a bit of
H2O2 still active.
I still believe that the risk of argyria is dose dependent, and that the
most relevent factor is the actual amount of silver in the product. I also
believe that when you add an acid to the equation, that risk increases at
least slightly, due to increased adsorption into tissues. Using a high PPM
silver stabilized with acids intranasally is one of the quickest ways to
develop argyria.
~Jason
----- Original Message -----
From: "David AuBuchon" <[email protected]>
To: <[email protected]>
Sent: Thursday, September 15, 2011 21:52
Subject: CS>Concentrating EIS
This need a new thread.
1. When EIS gets concentrated through evaporation, why does it turn
brown?
2. The color being reversible when you add distilled water, what can
we say that tells us about the risk of argyria when consuming a set
mass of silver in a highly concentrated form as compared to normally?
3. If you added peroxide to EIS first, and then tried to concentrate
it, what would happen? Would the metallic particles still remain
stable?
~David
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