You can get a very useful comparative idea that way, but 'determining' a
conductivity number would be tough.
In my numerous observations to determine ideal max current density, every
time I've seen a "golden stream" , I made yellow CS.
Lowering the current density eliminates the golden stream. [Probably by
moving it to very close to the electrode and sticking it there rather than
establishing a disbursing field in the water ]
I think it has to do with tweeking to favor one particle forming anion
[hydroxyl to silver hydroxide] over the other [ oxygen to silver oxide ]
"What" is in the water as an impurity has more of an affect than how
much...meaning....one batch of water at 5 uS can do just fine while another
at only 1 uS can present problems.
At .2 uS, there's virtually nothing in the water, problematic or not.
Depending on what is in the water, various reaction thresholds present
themselves where, the more silver is there, the greater the adverse reaction.
Things get really iffy at over around 25-30 PPM
There's no way to tell what might be in a batch of water. Even the same
batch of water can change over a day or so as atmospheric contaminants
dissolve into it.
ode
At 08:47 PM 11/12/2006 -0800, you wrote:
Thank you very much for this discussion. I do not have
an LED on my set up, just batteries, multimeter, and
silver all hooked up with wires. Inspired by this
info, I set out to discover what the current is on the
various waters. I took a tall narrow vase to use as
the container, since it would keep the electrodes
covered at the same level. The voltage was constant
at 32.7 V DC.
First I measured my tap water....93.0 mA
Walgreens distilled.....................0.5
Glenwood distilled......................0.44
CS....new batch clear...................3.0
CS ....kc's batch..........................2.3
CS gold....................................4.0 and
rising
CS gold, cleared with H2O2.......3.8 and steady
CS....old batch clear..................3.8
In some of these batches, the current is steady, but
in others it is not, it continues to rise by a .01
every second or 2.
The new batch of clear CS was brewed for 2 hours, 1
quart, started with 32V dc, had the potentiometer set
at about 3.0, but it crept up over time to 3.3 mA.
How can I relate this current to conductivity, and to
ppm? It is obvious that as the conductivity (and the
ppm) rises, so does the current. And I suspect that
the rise in current in the gold colored CS is due to
the strong nature of the solution.
Any ideas what I have made as far as ppm? I don't have
excel, so I can't use that handy program online. From
what others have posted here, it may be 18ppm, or
something like that.
Thanks,
Kathryn
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