Iron and paper life

Iron salts are the major cause of the "corrosion" of paper that results when
using Iron Gall Inks. See the site

http://www.knaw.nl/ecpa/ink/ink_chemical.html

for many more details. Citations to many papers on the topic are found
elsewhere on the site.

Mike

----- Original Message -----
From: "Ryuji Suzuki" <rs@silvergrain.org>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Sunday, March 26, 2006 3:36 PM
Subject: Re: An exchange with Mike Ware (on Argyrotype)

> Well, the important part is to test whether iron is indeed involved in
> degradation of image, paper or both. If the answer is affirmative,
> then we should develop a way to thoroughly wash out iron, inactivate
> its catalyst action, and so on. It makes most sense if we know what
> the weakest part is, and remove that weakness. Firing shotguns is not
> the best approach.
>
> Mike Ware's reply mentioned that iron-generated hydroxy radicals are
> serious threat to conservation of paper. Does anyone have specific
> references to such studies? (I don't use iron in my process, and I'm
> not familiar with this area.)
>
Received on Sun Mar 26 15:28:11 2006