[pure-silver] Re: Request For Chemist: Bleach - Alcohol Interaction?
- From: Gerald Koch <gerald.koch@xxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Thu, 10 May 2012 18:25:33 -0700 (PDT)
An interesting question. I don't see the ingredients themselves encouraging
mold. However bits of emulsion getting in the solution will. In my own
darkroom I store only concentrates to save space. Developer, stop bath and HCA
get tossed after a single use.
Jerry
________________________________
From: Richard Knoppow <dickburk@xxxxxxxxxxxxx>
To: pure-silver@xxxxxxxxxxxxx
Sent: Thu, May 10, 2012 7:59:48 PM
Subject: [pure-silver] Re: Request For Chemist: Bleach - Alcohol Interaction?
> As a side point, is it reasonable to premix a gal and use it over a period
> of weeks or months (one shot), or is there some compelling reason to mixver
>bits of emulsion do
>
> it each time and as needed?
> --
The plain fact is that I don't know. I think the alcohol might evaporate
but if the container is sealed most of the time perhaps it won't. There may be
other reasons for making it up as needed. It seems to me that diluted
solutions
of Photo-Flo are vulnerable to mold. I suspect Jerry or one of the other
chemists here could give a more definite answer.
--
Richard Knoppow
Los Angeles
WB6KBL
dickburk@xxxxxxxxxxxxx
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