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

My aplologies for the previous 'blank' reply... my finger was hit by the wrong key 
at the wrong time...

Bogdan,
NaOH is also used for removing the emulsion off of solar plates after HNO3 etching bath.
The container in last semester's class seemed to have come in a container from a 'swimming pool' maintenance place. I also bought some from the local supermarket for mixing with my '20 Mule Team' box of borax for making homebrew Na metaborate for my pyro developer. 

Ken





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". 

================================
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"
________________________________________________________________
==================================================================== ========================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.
===================================================================== =======================================To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there. 

Seagoon: Any cases of frozen feet?
Eccles: You didn't order any cases of frozen feet!
====================================================================== ======================================To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e- mail address and password you set-up when you subscribed,) and unsubscribe from there. 

Seagoon: Any cases of frozen feet?
Eccles: You didn't order any cases of frozen feet!


============================================================================================================To
 unsubscribe from this list, go to www.freelists.org and logon to your account 
(the same e-mail address and password you set-up when you subscribed,) and 
unsubscribe from there.

Other related posts: