[pure-silver] Re: William Mortensen's Glycin Developer

That it is the hemisulfate is part of a note that I made in one of my notebooks
years ago.  Sorry I didn't list a source at that time.  The remaining part of
the note is that Kodelon is paraminophenol hemioxalate.

-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx [mailto:pure-silver-bounce@xxxxxxxxxxxxx]
On Behalf Of Michael Briggs
Sent: Monday, December 20, 2004 2:18 PM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: William Mortensen's Glycin Developer



On 20-Dec-2004 Koch, Gerald wrote:
> Gradol is paraminophenol hemisulfate.  An equal weight of 
> paraminophenol hydrochloride can be substituted.

What is the source for this identification of Gradol?   The booklet "The Edwal
Professional Photographers' Manual" that I have identifies it as "a derivative
of para aminophenol" without being more specific.

--Michael
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