[alt-photo] Re: ANYONE? CYANO TONER WITH COPPER?

[Jacques Kevers]

Hi Bob,
Searching on the web for this I found the following. No references, and no
reports on practical experiments however -- which means no guarantee
whatsoever..
Original texts in french, translated
First text:

http://www.nougaret.com/textes/conversion-cyanotype.pdf

*Green cyanotype*
1% potassium permanganate ................. 5cc
Sodium chloride (salt) .............................. 0.5g
Water .......................................................... 1 liter

Second:

"If we want another color than the characteristic  cyanotype's blue, you
can immerse your sheet, in the following order, in:

1- diluted hydrochloric acid, for bleaching
2- diluted sodium bisulfite, to eliminate the yellow tint
3- 1 % sodium carbonate solution
4- 4 % sodium hydroxide Solution

5- Rinse

6- a diluted boric acid solution to which one of the following solutions is
added, depending on the expected color:
6a/Black: a little Gallic acid
6b/Brown: a little tannic acid
6c/Purplish: a little tannin of oak
6d/Green: a little very diluted sulphuric acid, or a little potassium
permanganate + a pinch of common salt.

7- Wash in 1% hydrochloric acid to enhance tones. "

Hope this helps..
Jacques


2012/10/24 BOB KISS <bobkiss at caribsurf.com>

> Anyone?  Was it cupric sulfate or chloride?
>
>
>
> DEAR LIST,
>
>             I am going bonkers trying to find a formula for a toner that
> changes cyanotypes to a more greenish color.  I seem to recall that it uses
> cupric sulfate but I just can’t seem to find the formula.  I have looked in
> Christopher James’ Alternative Photo Processes and even Googled it.  Can
> any
> of you send me the formula?
>
>                         CHEERS!
>
>                                     BOB
>
>
>
>  Please check my website:  <http://www.bobkiss.com/>
> http://www.bobkiss.com/
>
>
>
>
> "Live as if you are going to die tomorrow.  Learn as if you are going to
> live forever".  Mahatma Gandhi
>
>
>
> “Madonne e fiori, trionfo eterno di gioventù!”  from Mattinata Fiorentina
> by
> Antonella Ruggiero
>
>
>
>
>
> __________ Information from ESET Smart Security, version of virus signature
> database 7624 (20121024) __________
>
> The message was checked by ESET Smart Security.
>
> http://www.eset.com
>
> _______________________________________________
> Alt-photo-process-list | http://altphotolist.org/listinfo
>