[pure-silver] Re: Grain Size


----- Original Message ----- From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Friday, October 27, 2006 7:35 AM
Subject: [pure-silver] Re: Grain Size


My problem with the Gainer advice is that the resulting developer isn't
Rodinal since sodium ascorbate is itself a developing agent. The
resulting mixture might be better but it is not what I am looking for.

Remember that Rodinal (p-aminopnenol) is closely related to Metol so the Ascorbic acid is probably supperadditive with it as it is with Metol. So, when one adds Ascorbic acid to Rodinal one winds up with a different developer. BTW, I wonder what effect the Ascorbic acid has on the pH of the developer. The pH will affect the activity of the developer, the same goes for adding Sulfite.

---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx


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