[pure-silver] Re: What happens when XTOL dies
- From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Thu, 2 Mar 2006 09:34:57 -0500
Yes the formula I quoted contains 100 g of sodium sulfite. The pH of
ID-68 should be higher than that of the Microphen substitute since the
borax to boric acid ratio is higher. Everything is pretty much the same
between the two.
The published pH of fresh Microphen according to Ilford in 8.67 - 8.93
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of Richard Knoppow
Sent: Wednesday, March 01, 2006 5:21 PM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: What happens when XTOL dies
----- Original Message -----
From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Wednesday, March 01, 2006 12:36 PM
Subject: [pure-silver] Re: What happens when XTOL dies
For my previous post, if it's of any interest, the pH of the
developer
listed in Patent 5,210,010 assigned to Ilford is 8.5 +/-
0.05 when
diluted 1+4.
The pH for the Microphen substitute is 8.8 +/- 0.13.
Jerry
Is the substitute the formula with 100 grams of sulfite?
If so do you know the pH of ID-68 or of Microphen? Kodak
has the pH of several of its developers listed, I have the
publication but forget which it is. I will look for it.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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