Richard Goodwin wrote:
Since it is recommended, and indeed works much better, to switch the
DC polarity periodically, it would make sense for AC to work. I
really don't understand why it would not, since all it does is switch
polarity periodically, albeit faster then you could do with a manual
switch.
AC does work. I worked out the formula some years ago as to the voltage
needed VS the switching rate, but don't remember what it was now. But it
works out that 20 to 30 volts requires switching every minute ( about
1/2 htz), and 10,000 volts requires switching around every 120th second,
or 60 htz.
The reason is simple. When the ions are stripped from the anode, the
progress toward the cathode at a drift velocity set by the electric
field in the vicinity of the anode. Thus if you double the voltage, the
ions drift away from the anode quicker, and the convection, or stirring
is able to move the ions sufficient that they don't get sucked back on
the next half cycle.
I have always used DC, but not switched it until recently. The
question that pops out of this then is: What is the optimum switching
time? If not 60 cycles per second then what? And why?
Depends on the voltage gradient. With a gradient of 20 to 30 volts per
inch (that is voltage divided by the spacing between the electrodes) 1/2
cycle per minute is about the optimum, and at 10,000 volts 120th cycle
per second or 60 htz is near optimum. The equation is not linear though.
Marshall
And I have read every one of those articles below and much more. Been
making silver for several years now. Just trying to refine the
technique and scale up to faster production. First step is to develop
the best method.
Dick
------------------------------------------------------------------------
*From:* "cking...@nycap.rr.com" <cking...@nycap.rr.com>
*To:* silver-list@eskimo.com
*Sent:* Fri, December 11, 2009 6:24:05 PM
*Subject:* Re: CS>ac or dc?
The answer is DC.
If you didn't know that, you are woefully behind in your understanding
of CS creation and your research.
Suggested:
http://silver-lightning.com/theory.html
http://silver-lightning.com/research.html
http://www.colloidalsilver.com.au/FREE-DIY.html
http://www.silver-colloids.com/Book/SilverColloids-s.pdf
http://www.fugitt.com/cs_notes/
Chuck
When you are not looking at it, this sentence is in Spanish
On 12/11/2009 1:19:46 PM, Richard Goodwin (dickgoodwin2...@yahoo.com
<mailto:dickgoodwin2...@yahoo.com>)
wrote:
> Which do you think works better for making EIS, DC that you have to
switch
> polarity on every minute or so, or AC, assuming everything else is
equal?
>
> Dick
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