U of S | Mailing List Archive | alt-photo-process-l | Re: Potassium Oxalate recipe

Re: Potassium Oxalate recipe



What about sodium oxalate? Is it OK as Pt or Kallitype developer?
I can get here sodium carbonate much cheaper than potassium one.

Regards from Slovenia
Stane Kocar

----- Original Message ----- From: "Eric Neilsen" <ejnphoto@sbcglobal.net>
To: <alt-photo-process-l@usask.ca>
Sent: Friday, September 22, 2006 1:26 AM
Subject: RE: Potassium Oxalate recipe


John, 2 lbs of Pot Carb with 1.75 lbs to make 1 gallon of water. 1 lbs = 457
g and 1 gallon = 3.8 l ( top of my head but close enough as it is just POT
OX).

Mix you Pot Card into cool distilled water; about 1/2 your total volume.
SLOWLY add your Ox Acid as it WILL BUBBLE!!!!. Add to completion and top
off with water to make final volume.


Eric


-----Original Message-----
From: John Brewer [mailto:john@johnbrewerphotography.com]
Sent: Thursday, September 21, 2006 6:23 PM
To: Alt list
Subject: Potassium Oxalate recipe

Hi list

Does anyone have a recipe for potassium oxalate (as a Pt/Pd dev) using
potassium carbonate and oxalic acid in metric units.

Thanks

John

www.johnbrewerphotography.com

Life shrinks or expands in proportion to one's courage. Ana´s Nin.







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