Re: Pt/Pd toner receipes?

With much thanks, Etienne- I appreciate all the help one can receive!
Susan.
----- Original Message -----
From: "Etienne Garbaux" <photographeur@softhome.net>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Wednesday, April 28, 2004 7:05 PM
Subject: Re: Pt/Pd toner receipes?

> Andrey wrote:
>
> > Some of you have mentioned Platinum and Palladium toners. I've
> > never seen any formulas. Could you please tell me the receipes or
> > point out any links? For example Etienne explicitely mentions _acidic_
> > Pt toner, thus I conclude there is a variety of them...
>
> Gold can be made to tone in both alkaline and acidic solutions. Platinum
> tends to be way too active in alkaline solution, palladium even more so --
> therefore, they are generally used in acidic baths. When using gold
> followed by platinum, I have had better results with alkaline (borax) gold
> toners. FWIW, even in acidic solutions I have had problems with palladium
> depositing a dichroic fog of colloidal palladium indiscriminately on the
> print (and often, the tray).
>
> Here are a few links (some of these may word-wrap and need
reconstruction):
>
> http://albumen.stanford.edu/library/monographs/reilly/chap8.html
>
> http://unblinkingeye.com/Articles/Kallitype/K002/k002.html
>
> http://www.alternativephotography.com/process_saltprints.html
>
> http://www.southbristolviews.com/pics/pop/pop.html
>
> http://www.albumenworks.com/toning.html
>
> http://www.bostick-sullivan.com/Technical_papers/goldtone.htm
>
> Best regards,
>
> etienne
Received on Thu Apr 29 06:23:57 2004