[pure-silver] Re: Defender 55-D Professional Portrait Developer
From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Date: Tue, 2 May 2006 14:51:02 -0400
Metol will dissolve in a 100g/l sulfite solution. It does take heating
the solution to 125F (no big deal as Kodak recommends this anyway) and
*lots* of stirring. I learned this one time making up D-76 and forgot
to add the Metol before the sulfite and hydroquinone. So much for
multitasking.
Jerry
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of Richard Knoppow
Sent: Tuesday, May 02, 2006 2:36 PM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: Defender 55-D Professional Portrait Developer
----- Original Message -----
From: "Nick Zentena" <zentena@xxxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Tuesday, May 02, 2006 11:21 AM
Subject: [pure-silver] Re: Defender 55-D Professional
Portrait Developer
> On Tuesday 02 May 2006 14:05, Justin F. Knotzke wrote:
>> <quote who=Nick Zentena] date=[02/05/2006 14:00/>
>>
>> > Unless you do something like forget the metol thing
>> > will work. It could
>> > be a different formula but things usually work.
>>
>> Take the D 76 formula.. All the same chemicals as
>> Defender 55 D plus
>> Borax.. Can I mix the powders together and then add water
>> when I am
>> ready to develop? I think I read that I would have to
>> separate the Metol
>> from everything else..
>
>
> Not a good plan usually. Some things don't mix well if you
> do them in the
> wrong order. You should add the chemicals in the order
> they are listed in the
> formula. One advantage of mixing your own is you can skip
> the stock step.
> Instead make things up already diluted. If you intend to
> use something 1:1
> just add half the chemicals to 1litre of water. This is
> usually easier then
> making stock since you've got less chemicals going into
> the solution.
>
> Nick
>
Metol will not dissolve in a concentrated solution of
sulfite. Kodak obviously has some magic which is used for
D-76 and Dektol so that they can be packaged as a single
powder. I have no idea of how they accomplish this. Many
years ago both developers came in two part containers.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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