It's me again, with more questions! :o)
It's based on area. The area is proportional to the length for wire
electrodes, which is why they'd give you a figure like 4". Your area
depends on how deep you can set your coins. More area will deposit
silver into the water sooner than less area, yes.
Ah ok, got it. I made two bacthes of CS yesterday. Both batches were
left to 'brew' for 3 hours or so, in about 2 cups of water (is that too
long? guess I'll have to get myself a laser pointer).
For the first batch, one coin turned black, and the other grey with
silver oxide particles attached to it. The second batch generated the
silver oxides much faster - I am assuming because more of the coins were
submerged - to the point where they looked like stalactites 'florets'
almost touching the bottom of the 2-cup container.
In both batches, there were some silvery particles floating at the
surface of the water (more so in the second batch than in the first). I
tried to avoid them, but my impatience got me drinking the water with
them. Any else experiencing the same?
"Decent CS" is anything that's pure and that works. You don't need 18-
20 ppm. Anything around 5 to 10 ppm is fine. Anything much above 13 ppm
or so gets harder to do reproduceably and requires more careful control
than your setup allows. Be satisfied with making and using more, lower
concentration CS and you'll incur less hassle and expense.
My CS almost tasted like tap or 'country' water with a slight metallic
after taste, but without the chlorine smell/taste. I was wondering if
leaving it running longer would increase the PPM, but from what you say
I gather it doesn't.
If you get a meter and monitor the current, plotting current versus
time will give you a curve that rises slowly at first, gets steeper,
then starts to flatten out. About the time it starts to flatten out
it's gotten about has high a concentration as you can easily get.
Seems I will have to get myself a meter, then. Just out of curiosity,
do you use a home-made generator? Do you make your CS in a small
glass? And if yes, how long does it take until it is 'done'?
The CS you made is still usable. All you did was waste a little silver
making bigger particles. You can use the approximate shutoff time for
your next batch if you keep everything about your setup as constant as
you can.
Speaking of wasting silver. About how long will these Maple Leaf coins
last? Will I actually seem gradually reduce in size? Also, the coins
were very shiny before I used them and now they are more matte, with
some dark stains from the oxides which are hard to get rid of. How do I
clean them to regain their shine? Is this even required?
The negative electrode will start to turn grey and dull, too, but it
will be a lighter, medium grey. It will start to accumulate little
fuzzy tufts of silver particles. The longer you run the more will
accumulate. You're not really getting the brew any stronger once the
fuzzies get obvious.
Is it a good indication then to stop the brew when the accumulation of
the silver particles become obvious?
Thanks for all the answers so far Mike. :P
Maryau
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