[NewCandle] Quick update on my silver displacement experiments

[Keith Nagel]

Hey Nick,

I used 6061-T6 aluminum rod stock, as it was what I had in rod stock form.
I'll buy some pure aluminum rod stock soon, what I wanted to
test in this experiment was the general electrode shape and reactor design.
So perhaps it's magnesium?

I can see now that what it happening is that the
silver dendritic mass is delaminating from the aluminum. The "creeping"
effect is due to the fact that the delaminated edges are peeling back.
This is accompanied by some gas bubbles. I assume after a few more
weeks the whole mass will delaminate. The meshed aluminum I used didn't
delaminate so radically, I wonder if this is a geometric effect or
composition?

To be clear, all these experiments are self powered. The current density
being determined by the surface area of the aluminum and the initial
concentration of silver.

K.



-----Original Message-----
From: newcandle-bounces at ipdiscover.com
[mailto:newcandle-bounces at ipdiscover.com]On Behalf Of Nick Reiter
Sent: Sunday, February 22, 2009 7:37 AM
To: New energy for the new world.
Subject: Re: [NewCandle] Quick update on my silver displacement
experiments



Hi Keith,

Great dendrites, man!  tres cool.

I wonder if the black material is a reaction product of the silver nitrate
with alloy components in the Al.  Do you have an assay of the aluminum
alloy, or an idea of the grade?  Is it the same stock as you sent me a while
back?  If so, you might be able to pick out a culpret from there - I dont
recall 100% but I think there may have been some Fe and Mg going on.

Also, you use the term electrode - were you supplying outside current, or is
this term covering the electrical currents and potentials presumably arising
from the reaction at the surface?

n


>
> Just a quick update on my on-going experiments with the
> silver/aluminum
> system. I fabricated some electrodes; aluminum rods ground
> into lozenge
> shapes, with a hole in the center to allow for support
> inside a test
> tube. They were mechanically polished with aluminum oxide
> sandpaper
> to a bright finish. The tubes contain .2M silver nitrate
> solution. This shot
> shows three
> tubes, all the same except for the size of the electrodes,
> after 8 days.
>
> http://www.kpnconsulting.com/newcandle/download/k_silver1.jpg
>
> The surface area of the electrode determines the reaction
> rate so
> you can see roughly what the surfaces looked like at
> different points
> in the 8 day timeframe. The black anode area coating
> eventually begins to
> break off
> along with gas being generated. Why this material tends to
> get stuck to
> the silver is a puzzle to me, outside of the obvious fact
> that
> it is getting stuck on the way to floating to the surface.
> Yet it seems to "crawl" around to other parts of
> the electrode?
> What is this stuff? I assume the gas in H2, but I
> haven't tested it
> yet. Clearly the available silver has either been depleted
> or
> enough aluminum is in solution to start a competing
> reaction
> to the silver displacement.






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