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Re: My first platinum prints - and I'm hooked


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  • Subject: Re: My first platinum prints - and I'm hooked
  • From: ric kb <ric_kb@yahoo.com>
  • Date: Tue, 05 Aug 2008 08:08:20 -0700 (PDT)
  • Cc: ercdraper@gmail.com
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the how-to:
The full and correct method:
http://home.att.net/~jdmestra/guide/FO_powder.pdf

an abbreviated, subject 2 error, method:

http://e.neilsen.home.att.net/FerricOxalate.html

.. by the way, what are the CAS nums you are using in your formulation?

Richard
-- doing some X's with "other" Oxalates now... more when finished

--- On Fri, 8/1/08, Edward Draper <ercdraper@gmail.com> wrote:

> From: Edward Draper <ercdraper@gmail.com>
> Subject: My first platinum prints - and I'm hooked
> To: alt-photo-process-l@usask.ca
> Date: Friday, August 1, 2008, 9:19 AM
> Hello there from sunny London
> 
> I've just done my first ever batch of platinum prints
> and I am very pleased
> with them.
> 
> However, there are two major problems
> 
> 1) the expense of importing kits from Bostick and Sullivan
> - Santa Fe to
> London is not cheap
> 2) The blacks are not as black as I've seen in other
> platinum prints
> 
> I have been told that Solutions A and B should be saturated
> with oxalic acid
> - to the point where there is a permanent residue at the
> bottom of the
> bottle
> 
> Has anyone else had experience of this?
> 
> So...
> 
> I've decided to mix my own solutions.
> 
> I've worked through the suppliers here in the UK and
> [found the CAS no. for
> all the substances]
> 
> There is one major problem - ferric oxalate. I can get it
> but it is very
> expensive - I'm assured that I can make my own quite
> easily
> 
> But I can get hold of ammonium ferric oxalate at a fraction
> of the cost
> 
> I see that this can be used as a substitute
> 
> Does anyone have a recipe based on ammonium ferric oxalate?
> 
> 
> 
> Thanks a million
> 
> Edward (soon to be poor) Draper