From: Sandy King (sanking@hubcap.clemson.edu)
Date: 04/23/00-07:31:28 AM Z
Don,
With staining developers such as PMK, and the Pyrocatechin Pyrocat
formula made available in the last issue of Post Factory Photography,
you will get maximum image stain with alkaline fixers.
In my working conditions Kodak Rapid-Fix has a pH of about 5.2
(ACIDIC), the TF-3 formula a pH of about 9.0 (ALKALINE). All other
things the same you will get more stain with the alkaline TF-3
formula than with Kodak Rapid-Fix.
Sandy
>Sandy,
>
>Do you know it Kodak rapid Fix is an acceptible ingredient as spec'ed in the
>TF-3 formula?
>
>I've been using Rapid Fix with fine results but I would like to increase
>stain some. I know that the degree of stain depends on many variables but
>I'm only interested in changing my fixer ph from acidic to alkaline for the
>time being.
>
>Thanks,
>
>Don Bryant
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