It's going to take a while to digest all this stuff.
It might be possible that the brownish tinge, if not the yellow color often
seen in CS is a form of silver oxide and I've also made CS that had a
blackish tinge that later settled out.
That's what I thought several years ago till I ran across the particle
'size'/color relationships that may or may not entirely disabuse the notion.
In some cases, it could even be oxidation from air exposure that turns CS
yellow over time. I haven't degassed and sealed batches well enough to
make that statement with any certainty. [A little Argon could be handy there?]
LVAC will turn both electrodes white {high F}, black or brown {low}
depending on the frequency at a given current. They appear to run cleaner,
not because they don't produce byproducts, but because the byproducts fall
off into the water. {Sparklies}
Haven't tried HVAC except for running a generator that as given to me that
made emusified sludge that seperated into black and brown layers and later
turned entirely deep black. [Very high current density and voltage/
presumably 60 HZ...I need to dig it out and put it on the scope.]
I've run across an H2O2 manufacturers website that states that H2O2
converts silver ions into metallic silver and releases H+ ions. The
equation seemed to be missing something.
I wrote to them.
On that website [they make industrial sized water treatment machinery for
waste reclamation and community potable water treatment] they also went
into how H2O2 neutralizes ozone and releases chlorine in water that was
treated with it.
I'm not quite ready to dismiss suspended silver particles.
Old programming goes own hard.
Part of the trouble I'm having with it is the TEs 'usual' habit of being
invisible in diffused light and appearing milky in direct light. [with a
few exceptions encountered..mostly in making LVAC CS, where the TE appears
milky in almost any light such as 'dim direct' like on a shaded windowsill
when looked 'at', but crystal clear when looked 'through' ]
There may yet another set of nuances that includes 'various' particles,
compounds and mixes of them.
It's pretty clear that H2O2 doesn't always do the same thing to everyones CS.
My TE always increases or at least changes without decreasing. Others say
their TE goes away.
The only 'common' demoninator I see is H2O2 removing color.
Ode
>
>Yes, initially you get silver hydroxide on the cathode, and silver oxide
on the anode (but after a while they become silver oxide and silver
peroxide). If reversal takes place without taking too long, they will both
revert back to water. That is why HVAC produces absolutely no peroxide, oxide
>or peroxide on the electrodes.
>
>We are making progress!
>
>Marshall
>
>>
>>
>> It is clear that the oxidation of Ag(I) to Ag(III) occurs more easily
than oxidation of hydroxide to oxygen under the conditions provided.
>>
>> http://chem.lapeer.org/chem2docs/silver.html
>>
>> OK, that's enough. I've boggled my little mind.
>> Ode
>> ###################################################################
>>
>> At 05:18 PM 8/20/2004 -0400, you wrote:
>> >Mike Monett wrote:
>> >
>> >> So the basic conclusions remain as before. The black stuff is oxide.
>> >
>> >Scrape off a small amount of the black stuff, and put it in a glass of
>> >distilled water and warm. If it dissolves slowly, it is silver oxide, if
>> >it does not then it is either silver peroxide, or finely divided silver
>> >powder. If it conducts electricity, it silver metal.
>> >
>> >Marshall
>> >
>> >
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>
>
