From: Eric Neilsen <e.neilsen@worldnet.att.net>
Subject: RE: Pt./Pd. question acid pre-soak
Date: Tue, 09 Aug 2005 00:24:16 -0500
> It is really a question of," Why does oxalic acid promote a higher
> Dmax for PT/PD prints?" In what conditions? For both FO and AFO, RH
> factor, Paper type?
That's your question and not Sandy's or my question. Sandy's question
was whether the pH change was the sufficient condition to improve the
print, or something other than pH change given by oxalic acid is
necessary. To test this, I suggested to avoid organic di- or
polycarboxylic acids for comparison because the results are
uninterpretable.
Received on Tue Aug 9 10:02:20 2005
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