Pt./Pd. question acid pre-soak

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From: Sandy King ^lt;sanking@clemson.edu>
Date: 08/08/05-06:37:03 PM Z
Message-id: <a06020427bf1da9a8a768@[192.168.2.2]>

As we know a pre-soak in a 1-2% solution of oxalic acid can add quite
a bit of Dmax in Pt./Pd. printing with some papers. Does anyone know
the mechanism of how this works? Is it merely a question of
acidifying the paper? Has anyone ever compared the results between
papers pre-soaked in oxalic acid and in some other dilute acid
solution, say a 1-2% solution of citric acid?

Sandy
Received on Mon Aug 8 18:37:17 2005