sol <[email protected]> wrote:
> I never did filter my EIS, having done a simple version of Mike's
> test.
> I simply ran some of my DW through a coffee filter and measured
> the conductance before and after. Whatever got added (and lots got
> added to the conductance) I decided I didn't want it in my EIS.
> Bad enough to have it in my coffee.
> The issue of filtering EIS(CS) has been discussed here many times
> before. Some folks insist on it, but many of us (most of us?) do
> not filter. My own idea is that any silver particles or flakes big
> enough to be seen are just going to pass right on through the
> digestive system. If they can be broken down into smaller
> particles or even ions in the digestion, and pass into the blood
> or lymph, no harm done, if they pass on out, no harm done, if they
> are too big to get into the bloodstream, no harm done. But adding
> crap from the paper filters to EIS could cause reduction in both
> silver content and effectiveness, as Mike says.
>sol
Hi sol,
Nice to see you again. I agree with your comments.
I just did the test with a "GK Connaisseur", "100% Oxygen Cleaned
Paper" coffee filter.
After 10 minutes, it was obvious that adding salt was not necessary.
The white silver chloride dispersion was the same strength as for a
normal salt test.
Adding ordinary household ammonia caused the solution to become
clear.
Just for reference, the relevant equations are:
NaCl + H2O --> Na(+) + Cl(-) + H2O
Salt dissolves in water
Ag(+) + OH(-) + Na(+) + Cl(-) --> AgCl(ppt) + NaOH
Silver ion + hydroxyl ion + salt --> silver chloride and sodium
hydroxide
Adding ammonia:
AgCl(s) + 2NH3(aq) --> [Ag(NH3)2]+(aq) + Cl-(aq)
Silver chloride + ammonia --> silver ammonia complex plus chlorine
ion
The conclusion is the filter paper contained lots of salt, NaCl.
The marketing phrases used tend to be meaningless for our needs.
We try to avoid contaminating the cs and generator with cleaning
solutions such as bleach, vinegar, and other household cleaners. So
it makes little sense to add contamination by filtering the cs.
Best Wishes,
Mike M
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