> Re: CS>Baking soda
> From: Ode Coyote
> Date: Sat, 10 Jul 2004 05:24:07
> I did a little experiment to see if using baking soda did or
> didn't react with silver ions.
> 16 oz batch run at 1 millimap on 12" exposed 12 guage electrodes,
> input at 12 volts [because I was playing with 12 volts that day]
> Water at was .5 uS adjusted to 12.4 uS using the smallest amount
> of baking soda I could get onto the tip of a damp toothpick.
> [WOW!]
> I ran the batch for a total of 2hrs and 41 minutes to 35.2 uS
> Subtracting to get the difference = 22.8 uS
Hi Ken,
Very Interesting! The Faraday calculations predict an increase of
22.826 ppm, almost identical to your uS value.
This seems to validate the conversion factor of 1 microsiemen = 1
ppm, and extends the range to 35 ppm. So we now have data from 3 ppm
to 35 ppm that shows the same conversion factor. See the following
for reference:
http://escribe.com/health/thesilverlist/m63151.html
> Electrodes ran cleaner than usual
> CS was crystal clear.
> Had a strong flavor.
> PH at 9.7 [I have no idea if my little PH meter is accurate]
Probably not - distilled water is difficult to measure and needs a
different kind of probe.
> Initial conclusion...Hummm, not bad at all!
> BUT
> About an hour later the batch had turned very milky looking and the
> conductivity went up to 48 uS.
Hmm - I wonder if this affected the uS readings during the brew?
> Ordinarily I'd have been pleased with a large number of pure
> silver particles suspended in there, but I was suspicious.
> Something wasn't quite right.
> I started searching out the properties of silver carbonate.
> Apparently it's used in ceramics glazing and is a grey powder that
> darkens with light exposure.
> It is not soluable in water.
> Then I discovered that adding vineger would make silver acetate
> which IS soluable in water.
I wish we could get the chemical equations to show these reactions!
> I poured out two equal amounts of the batch into 2 clean glass
> jiggers, diluted one with distilled water and the other with pure
> white vinegar. I sat all three containers on a windowsill...not in
> direct sunlight.
> Original container developed a gray deposit on the bottom as the
> milkyness gradually reduced to almost clear. The very strong TE
> dimimished considerably.
> Jiggerful diluted with water did the same.
> Jigger diluted with vinegar went crystal clear with almost no TE and
> no deposits.
> Conclusion: I had made silver carbonate.
Again, it would be nice to have balanced eqations to work with.
> Looking further, I found that [insoluable/ light sensitive] silver
> carbonate makes silver ions upon exposure to hydrochloric acid. Back
> to square one if you drink it down.
> The silver in [soluable/ light insensitive] silver acetate is
> released as pure metallic particles when in the presence of iron.
> Hummm [silver plated red blood corpuscles? Use an iron
> electrode?..might get a very shiny nail.]
> I ran another batch using one drop of vinegar. Looked pretty good
> but I got busy on something else and lost it somewhere and didn't
> take notes.
> The baking soda batch samples still look the same on the window sill
> after a week or 2.
> Ode
Very nice, Ken. Here's the Faraday calcs:
Cou = I * sec ; total number of Coulombs
gm = k * I * sec ; Faraday's equation
k = 107.868 / 96485 ; Coulombs required per gram of silver
lt = 3.785 * gal ; convert gallons to litres
lt = ml / 1000 ; convert millilitres to litres
mg = gm * 1000 ; convert grams to milligrams
ml = 29.57 * oz ; convert ounce to milliliters
phr = ppm / hrs ; ppm per hour
ppm = mg / lt ; 1 ppm is 1 milligram per litre
sec = hrs * 3600 + mnt * 60 ; convert hours to seconds
hrs = 2
I = 1e-3 ; current
mnt = 41 ; minutes
oz = 16 ; volume of dw
Solution:
Cou = 9.6600
I = 0.0010
sec = 9660.0
gm = 0.0107
lt = 0.4731
gal = 0.1249
ml = 473.12
mg = 10.799
oz = 16.000
phr = 11.413
ppm = 22.826
hrs = 2.0000
mnt = 41.000
Best Wishes,
Mike Monett
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