Re: chemical chaos

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From: stan johnson (sjohnson@gwi.net)
Date: 04/15/00-02:52:30 PM Z


** Reply to note from Judy Seigel <jseigel@panix.com> Sat, 15 Apr
2000 15:39:33 -0400 (EDT)
> one of the chemicals wouldn't dissolve until you'd done the one
> before -- maybe the first one was sodium sulfite?????
 
Probably what you're recalling is that metol won't dissolve in sulfite
solutions of ordinary strength, yet oxidizes much too rapidly in the
absence of sulfite. The standard workaround is to put a very small
amount of sulfite in solution first ['pinch'], then dissolve the metol,
then the rest of the sulfite.

stan

-- 
Stan Johnson 
sjohnson@gwi.net
04/15/00 04:52pm


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