[pure-silver] Re: Sodium Hydroxide = Red Devil Lye


On 19-Jan-08, at 3:53 AM, john stockdale wrote:
If you're in a part of the world that uses English English you might find it at the supermarket called "caustic soda". 

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At 05:09 PM  19/01/2008, you wrote:

Hi All,
This is a bit off the wall but I'm taking a chance that somebody in our august and diversified group might be of help.
The only large supplier of photograde chemicals in Canada is a 15 minute ride from my place. In my order I needed Sodium Hydroxide to make a particular solution of Sepia Toner. She informed this afternoon that she doesn't carry it anymore because of the very low demand. I was the first person in year who asked for it. So I substituted Potassium Hydroxide at the ratio of 10:14 by weight.
Now the question? Anchell in the "Darkroom Cookbook" suggests that a substitute for Sodium Hydroxide is RED DEVIL Lye. This is an American label (I'm Canadian) and several people I have spoken to have never heard of it. My wife told me that her mother used to use LIONS Lye to flush out the drains but I don't know if it is a substitute for RED DEVIL; I don't know if it can even be bought anymore.
Would anybody, perchance, on the off chance, trivial pursuit question, ...... have an idea of a Canadian substitute for RED DEVIL Lye to replace the Sodium Hydroxide????? 

Pleeeeeese.......
It's nice to be able to lug home a 5 Kg container of Sodium Thiosulphate 

Cheers :)

Bogdan


________________________________________________________________
  Bogdan Karasek
  Montréal, Québec                     bogdan@xxxxxxxxxxxxxxx
  Canada                               www.bogdanphoto.com

                     "I bear witness"
________________________________________________________________
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