I do not believe a faucet screen would do the job.
Ken
At 06:42 PM 10/22/01 -0400, you wrote:
>Anyone know if there are any companies that produce silver faucet aerator
>screens? And if yes
>where could I purchase some? Also does anyone feel that this would be
>adequate to kill bugs in wate
Joseph,
As to whether any kind of 'silver faucet aerator screens' are available
in the market, I have my doubts. There are several problems concerning
the relatively high water pressure, by comparison to a gravity fed
system.
For one thing some of the experts site an exposure time necessary for
ki
he name of the company, and how to
contact them.
- Original Message -
From: Joseph Fritz
To:
Sent: Monday, October 22, 2001 5:42 PM
Subject: CS>question related to: CS>Firing CS onto water purifiers: the
QUESTION
> Anyone know if there are any companies that produce silver fauce
Anyone know if there are any companies that produce silver faucet aerator
screens? And if yes
where could I purchase some? Also does anyone feel that this would be
adequate to kill bugs in water?
Just that with all the bio terrorism scares that this would be a cheap way
to if not purify water to
Everybody,
Following is a response from a ceramist friend of mine on the issue of
mixing the CS into the clay composition prior to forming the purifiers,
then firing. I am reminded that there's a lot going on in the process of
firing that's not always easy to predict.
(Another example of this is a
Nina,
Thanks!
Reid
Nina's friend said, ""I figured this (i.e. the silver filter) was it,"
he wrote me, "since Clark is famous for not liking very much of the
products she gets for testing. To my complete surprise, my unit passed
with flying colors. And it also cleaned the water."
P.S. Everybody, I
Reid,
I haven't jumped in because this is something I remember
from discussions several years ago with the folks that produce
ceramic filters similar to the Daulton or British Berkefeld type.
They construct the filter element from diatomaceous earth.
This gives a (memory here) abs
> Mike Devour said:
> Honestly, I'd bet the silver would work whether or not it kept the
> initial (alleged) colloidal particle charge, Reid. Even drying the
> colloid probably dumps the silver back to the ground state.
>
> You are attempting to use a lower firing to "set" the silver in
>
Mike,
Aside from the cosmetic thing I think it much preferrable that we get
the silver bonding somehow with the earthenware, then the lifetime
concerns only the strength of the ceramic, and not the silver flushing
out. (BTW, Roger, Frank, Quitcove, Everybody, Regarding more recent
messages than thi
Frank writes:
> M. G. Devour wrote:
> > Even drying the
> > colloid probably dumps the silver back to the ground state.
>
> The "particle charge" on silver particles is due to the zeta potential
> and it does not survive removal of the water. There is no ionic charge
> on the particles.
>
> Ion
PM
To: silver-list@eskimo.com
Subject: Re: CS>Firing CS onto water purifiers
In a message dated 10/6/2001 3:10:40 PM Eastern Daylight Time,
quiet...@midcoast.com writes:
Subj:RE: CS>Firing CS onto water purifiers
Date:10/6/2001 3:10:40 PM Eastern Daylight Time
From:
Roger wrote:
> Frank: You have to describe the system and temperature before you can define
> the stability of Ag2O . Is your system Ag2O in air (where the partial
> pressure of CO2 is 3.55 * 10-^4 atm, or is the Ag2O in 1 atmosphere of CO2,
> or somewhere in between? It makes quite a differe
In a message dated 10/6/2001 3:10:40 PM Eastern Daylight Time,
quiet...@midcoast.com writes:
> Subj:RE: CS>Firing CS onto water purifiers
> Date:10/6/2001 3:10:40 PM Eastern Daylight Time
> From:quiet...@midcoast.com (Quietcove)
> Reply-to: mailto:silver-list@eskimo.co
In a message dated 10/6/2001 3:10:35 PM Eastern Daylight Time,
fr...@strsoft.com writes:
> My comment was referring to room temperature. The only reaction I recall at
> elevated temperature is that silver carbonate gives up the CO2 to form
> silver oxide again. It is this reversable reaction t
Roger wrote:
> > When the water is evaporated from a silver ionic solution, the silver ions
> > form a compound of silver that reduces to silver oxide.
>
> Frank: I doubt that silver oxide will form since it is unstable above about
> (I don't recall the exact temperature) 150C. And because its r
Message-
From: rogalt...@aol.com [mailto:rogalt...@aol.com]
Sent: Saturday, October 06, 2001 12:11 PM
To: silver-list@eskimo.com
Subject: Re: CS>Firing CS onto water purifiers
In a message dated 10/6/2001 9:51:47 AM Eastern Daylight Time,
quiet...@midcoast.com writes:
Reid wr
In a message dated 10/6/2001 12:40:55 PM Eastern Daylight Time,
fr...@strsoft.com writes:
> When the water is evaporated from a silver ionic solution, the silver ions
> form a compound of silver that reduces to silver oxide.
>
> So if you spray a filter with a solution containing both ionic si
M. G. Devour wrote:
> Honestly, I'd bet the silver would work whether or not it kept the
> initial (alleged) colloidal particle charge, Reid. Even drying the
> colloid probably dumps the silver back to the ground state.
The "particle charge" on silver particles is due to the zeta potential and
In a message dated 10/6/2001 9:51:47 AM Eastern Daylight Time,
quiet...@midcoast.com writes:
> Reid wrote:
> > The main reason we cannot apply the CS until after
> > the first firing is that it is necessary to reach at least 700 or
> > 800C, and preferrably 900C, in order to achieve good strengt
-Original Message-
From: M. G. Devour [mailto:mdev...@eskimo.com]
Sent: Saturday, October 06, 2001 5:12 AM
To: silver-list@eskimo.com
Subject: Re: CS>Firing CS onto water purifiers
Reid wrote:
> The main reason we cannot apply the CS until after
> the first firing is t
Honestly, I'd bet the silver would work whether or not it kept the
initial (alleged) colloidal particle charge, Reid. Even drying the
colloid probably dumps the silver back to the ground state.
Maybe Frank Key can comment.
I hope you try it and find the filter still works. I bet you will.
> I
Reid wrote:
> The main reason we cannot apply the CS until after
> the first firing is that it is necessary to reach at least 700 or
> 800C, and preferrably 900C, in order to achieve good strength. In this
> way the earthenware becomes hard and strong enough to help insure a
> long lifetime. It is
Mike,
I love to explain but did go off on a tangent. The question is: at the
elevated temperature does the silver ion become unstable, thus being
converted to the metal? i.e.
Ag(+or-) -heat> Ag metal
My hope is that this would happen at about the same temperature where
reduction would
Mike,
Here are just a few additional thoughts, in my muddle headedness not
expressed early. The main reason we cannot apply the CS until after the
first firing is that it is necessary to reach at least 700 or 800C, and
preferrably 900C, in order to achieve good strength. In this way the
earthenwar
Mike,
I started out my previous message by saying, "Yes, we are saturating the
filters, drying them, then firing." This is NOT what we are doing and I
can't believe my brain wasn't sufficiently engaged to correct it.
We do not saturate the filters with CS until AFTER the final firing,
just prior t
Mike,
Yes, we are saturating the filters, drying them, then firing. Aside
from the tiny amount of CS we use, the filters are made entirely from
local, red clay, combined with a very fine grained combustible, which
burns out, thus aiding permeability. In this case the combustible is
wheat flour, wh
Reid,
You're talking about saturating the filter elements in CS then drying
and firing them, correct?
Are the filter elements themselve produced locally? From what kind of
clay medium are they made? If it's a powdered or crushed dry clay that
is re-hydrated before forming or slip casting, woul
CS Listers,
I am hoping someone here may have a knowledge of chemistry that will
help guide us in the firing of colloidal silver onto earthenware water
purifiers. In the past I have fired AgNO3, the nitrate onto the
purifiers, however a byproduct is a lot of carbon in the filtering media
when firi
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