Mike Monett wrote:

>   Hi Nancy,
>
>   Thanks for  your  post.  You are confirming  what  many  people here
>   believe, which  is  the  ionic cs works  better.  The  silver oxides
>   produced in  many systems have little or no benefit. The  oxides are
>   inert, but H2O2 acts as a catalyst to convert them back  into silver
>   ions and oxygen. My own experience also tells me that high  ionic cs
>   works much better.

At first sight it appears contridictory that an oxidizer would reduce
silver oxide.  But maybe it can, but if so, according to this theory, the
amount of H2O2 you add could be very important.

Here is the theory. It is just a theory, I have no measurements to back it
up.

The H2O2 has an extra oxygen atom which it willing gives up.  If it
contacts a AgO, the extra atom is released. This could cause either of two
things to happen, either the O2 then splits away from the Ag, leaving a
silver atom, or it gives you AgO2.

But I think maybe another reaction is happening.  The silver ions will have
an OH radical associated with them.  The extra oxygen atom may be combining
with the OH and producing water. In the process it gives up an electron
which reduces the silver ion to a silver atom.  The end result would be a
colloid with the smallest possible particle size, one atom!

I believe this theory could be easily tested by adding a small amount of
H2O2 to CS, then adding a little salt. If this is correct less, or no AgCl
should form and it should remain clear, or clearer than if the H2O2 had not
been added.  I will see if I can run this test tonight.

The reduction of the size of particles is harder to explain.  Here is one
possibility.  The larger particles are an aggragation of smaller particles
via a siver ion.  The H2O2 reduces this ion as above, and then the two
particles no longer are both attracted to the same ion and drift apart.  Or
maybe the H2O2 causes oxygen to be evolved anywhere there is a defect in
the particle (or maybe an atom of copper), and the pressure breaks the
particle apart.

I think this line is very worth exploring, especially since many have
reported that H2O2 supercharges CS.  But it would be worthwhile to
determine if it is producing silver oxide, reducing silver oxide, producing
silver peroxide, or silver atoms.

Marshall


--
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]>