From: Jeffrey D. Mathias (jeffrey.d.mathias@att.net)
Date: 09/21/02-06:28:48 AM Z
Christina Anderson wrote:
> Are potassium citrate and sodium citrate interchangeable?
> Are ammonium, potassium, and sodium thiocyanate interchangeable?
Tom Crowe wrote:
> ... most potassium and sodium compounds with the same anion (citrate,
> etc) would be interchangeable, but you must adjust the formula for the
> proportionate difference in the molecular weights of the compounds.
Aside from adjusting the formula, you should expect differing results in
the print. At least with Pt/Pd, changing or mixing various cations can
give a wide variety of results in the print. This does not necessarily
have to be restricted to the coating mixture (could be in developer).
Adjusting/ balancing the formulae is critical for consistency and
predictable results. Information on balancing (for Pt/Pd) is presented
in my on-line guide at link below.
-- Jeffrey D. Mathias http://home.att.net/~jeffrey.d.mathias/
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