Increase the change time to around 1 to 3 minutes...or more.
Putting a voltmeter or ammeter on the cell and plotting the readouts will
tell you why.
Ode
At 12:40 PM 10/13/2006 +0200, you wrote:
Greetings to all,
I am trying to produce ionic silver of the best quality
& am having great difficulty in the time required to make a 10ppm
solution. It seems too much long. I am using a 100mA transformer
with a 30v DC supply
& sheet electrodes of about 6 sq. ins on one side of one electrode.
Naturally I use 2 electrodes of the same size.
To emulate some of the manufacturers who are on the Internet
I am using current control at 10mA & polarity change at
3 second intervals . Polarity exchange seems to have been the
main cause of the time extension. Current control is based
on about 0.8 mA per sq. inch of both sides of the one electrode.
I am using polarity change because of the lack of sludge .
Using distilled water as a starting point it can take up to
24 hours to reach this level. Using a starting solution of one litre, a
quart,
with the addition of 10% of a 10ppm ionic silver solution this time is
cut down to about 12 hours. A clear solution is obtained &
measured with a Hanna PWT meter.
My feeling is that I must have made an incorrect assumption
of one or more of the parameters so I would appreciate
informed & practical advice. Direct access is at
<mailto:[email protected]>[email protected] & I am most
happy to hear directly
from anyone.
Regards to you all.
Julius Kabrun
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