All these are relative terms, but EDTA is more likely to interfare with
the process than oxalic, citric, acetic, sulfuric, and other acids
mentioned here. EDTA has 6 sites (4 carboxyl groups and 2 nitrogens)
available to bind with iron pretty strongly. At this point, it's pretty
clear that it is the acid that is relevant, not chelation for iron. If I
were doing this myself, I would pick an acid that is easy to handle and
has little or no interference with the process being used.
On Mon, 15 Aug 2005 18:57:15 -0500, "Eric Neilsen"
<e.neilsen@worldnet.att.net> said:
> Etienne, Have you or anyone you know try a bath of disodium edta after an
> acid bath and wash? I will test a few papers that I have around the
> studio
> this week and let you all know what happens.
Received on Mon Aug 15 18:22:16 2005
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