From: Carl Weese (cweese@earthlink.net)
Date: 04/29/03-05:38:18 PM Z
Sandy,
The platinum solution is nominally 20%, but the palladium solution is less
than 10% palladium chloride. I think if you mix it from
palladium-sodium-chloride, which is more expensive than palladium chloride
plus sodium chloride, that is something like a 17% solution.---Carl
--
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and workshop information
http://www.carlweese.com
> From: Sandy King <sanking@clemson.edu>
> Reply-To: alt-photo-process-l@sask.usask.ca
> Date: Tue, 29 Apr 2003 18:21:43 -0400
> To: alt-photo-process-l@sask.usask.ca
> Subject: Re: The 20X24" Pt/Pd/Kallitype print
>
> Clay,
>
> Thanks very much. I had figured about the same but thanks so much for
> verifying my calculations.
>
>
>
> Sandy
>
>
>
>
>
>>> are both 20% solutions?
>>>
>>> Here is what I figure that is needed to fully tone a 20X24"
>>> kallitye print with platinum or palladium #3 solutions. I prepare
>>> one liter of toning solution using 5ml of the #3 solution, which
>>> according to my estimates amounts to only 1g of metal, since it is
>>> a 20% solution. To tone the 20X24" print I use about 200ml (or 1/5
>>> of 1g of metal salt) of the working toner solution, so I calculate
>>> that the amount I am actually using to tone a print this size is
>>> 0.2g of palladium or platinum. Do these figures make sense, and if
>>> so, what is the equivalent amount being used to make a real Pt/Pd
>>> print?
>> Oh, sorry. The answer would be 0.96g , so roughly 5x as much.
>>
>>>
>>> Sandy
>
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