[pure-silver] Re: Fishy developer: NOW Triethanolamine
- From: Ryuji Suzuki <rs@xxxxxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Fri, 17 Dec 2004 14:49:32 -0500 (EST)
From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
Subject: [pure-silver] Re: Fishy developer: NOW Triethanolamine
Date: Fri, 17 Dec 2004 14:32:14 -0500
> The solvent could be and mixture of TEA and propylene
> glycol or something similar. This would drop the pH of the
> concentrate and also the working solution.
Maybe a tiny bit but not enough. Some acid has to be added to buffer
the pH by TEA if that is the goal. DS-10 does so with ascorbic acid
and boric acid. Boric acid and TEA make an excellent buffer in pH
range of very fine grain developers.
--
Ryuji Suzuki
"Keep a good head and always carry a light camera."
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