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Re: Fw: Potassium Chlorate - effect on Pt/Pd
Nick,
A 4th of July test to see if your Potassium Chlorate is any good.
Mix 3 parts potassium chlorate with one part finely powdered sulfur
and one part powdered charcole. Light with a match. If it explodes
your potassium chlorate is good. ;-)
Bob Schramm
>From: Nick Makris <nick@mcn.org>
>Reply-To: alt-photo-process-l@sask.usask.ca
>To: Alt Photo <alt-photo-process-l@usask.ca>
>Subject: Fw: Potassium Chlorate - effect on Pt/Pd
>Date: Tue, 04 Jul 2000 13:18:18 -0700
>
>Carl, Jeffrey and all,
>
>I thought I sent the following to the list, but it looks like only Carl
>received it. In any case, yes it's Pot. Chlorate. Also Carl, the Negs are
>Lightjet 5000 and nearly continuous tone - unlike an imagesetter.
>
>
>
>Carl and all
>
> I recently purchased the Pot. Chlorate (10mg) from B&S and I went over my
> notes about the prep. I even took the balance of the 10mg and weighed it
> for what I thought it should be and it was as expected, 9.1mg.
>
> The stock solution I prepared was 4% (22ml of distilled water with .9mg
>PC).
> I just checked the bottle for anything unusual and it was perfectly
>clear.
> ???
>
> The sensitiser I prepared contained no PT.
>
> Nick
>
>From: Carl Weese <cweese@earthlink.net>
>
>
> > Nick,
> >
> > A drop of 2% pot. chlor. in a 32 drop Pt/Pd coating should make a
> > significant, clearly visible contrast increase. In fact a drop of 1%
> > should make an obvious difference. I can only guess that there's
> > something wrong with the batch of chlorate you are using.---Carl
>
>
>
Check out my web page at:
http://www.SchrammStudio.com
also look at:
http://www.wlsc.wvnet.edu/www/pubrel/photo.html
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