[Alt-photo] Re: Sulfamic Acid for Paper Acidification

[Earl Johnson]

Sulfamic acid is available at the big box home repair stores as grout 
cleaner. It is also one of the key ingredients in Mike Ware's argyrotype 
formula.

Earl Johnson


On 5/3/2013 7:07 AM, Serdar Bilici wrote:
> This happens to be my first post to this group so hello everyone,
>
> I have been working with alt. processes for over a year now. Recently, I
> tried different acids for neutralizing alkaline buffers in certain papers
> and I believe I have found an alternative acid for this purpose.
>
> I have tested sulfamic acid for paper acidification and it turns out SA is
> such a good performer. I have already posted the details and some samples on
> APUG. So I would share the link with you.
>
> http://www.apug.org/forums/forum42/118153-sulfamic-acid-paper-acidification.
> html
>
> I would be pleased to hear your opinions, suggestions for optimizing the
> procedure.
> I did some test using new cyanotype, argyrotype and Loris did some testing
> with ziatype and argyrotype.
> If you happen to test it with other papers or processes I am quite
> interested to hear your results.
>
> And I should agains thank Loris Medici for all his support and guidance
> during this process.
>
> Regards
> Serdar Bilici
>
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