If you use AC you must understand that there are two reactions that
occur at the electrode. One is an oxidizing reaction and the other
reducing. They alternate between them at the frequency. So anything
that gets produced at the electrode is immediately neutralized the next
half cycle. The result is that very little if any CS can be made by 24
volts at 50 or 60 hertz. What is required is for the products to leave
the electrode sufficiently far, to not get sucked right back and
neutralized the next half cycle. For around 20 to 30 volts, that is a 2
minute cycle (with stirring), and with 50 hertz it is about 9 KV, and at
60 hertz it is 10 KV. You can make very good CS using 50 or 60 hertz at
these higher voltages, I did it for years myself.
Marshall
Clive Mitchell wrote:
Hi. Just dropping a quick note to say hello and get off to a bad start
by asking awkward questions....
I've been playing with simple "colloidal" silver makers based on .999
silver rods with a single PP3 9V cell and a resistor and high
sensitivity LED in series. I've had to make do with tap water since
getting distilled water is surprisingly difficult in Scotland where
our tap water is one of the purest available, and thus bottled water
has the same status as a bottle of cola. (Just a handy drink.)
The results have been the fine mist of ionic silver and the inevitable
darkening of the fluid over time as the ionic silver bonded with the
tiny amount of chlorine and nitrates present in the water.
Last night I stumbled across the technique of using AC to make a less
ionic solution and promptly built a new version that is powered by a
24Vac wall wart connected to the electrodes via a 1k resistor and two
LEDs in inverse parallel so they both light on the AC and don't
rectify the supply.
I left it on all day today and the water shows no sign of the usual
misting from the electrodes and has remained absolutely clear. A test
with the resistive style dissolved solids tester showed that water
from the tap had 40ppm impurities while the treated water was
identical. Hmmmm.
A test with a fairly high output green laser showed fresh water had
little absorption, but the treated water had quite a strong line and
sparkle to it suggesting that there is some form of silver going into
the liquid.
Is 50Hz too high a frequency for the preparation of colloidal/ionic
silver?
Any comments would be appreciated.
I wish there was an easy way to get a genuine measurement of the
amount of colloidal and ionic silver present in a solution.
--
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