[pure-silver] Re: prepackaging my developer

  • From: Jean-David Beyer <jeandavid8@xxxxxxxxxxx>
  • To: pure-silver@xxxxxxxxxxxxx
  • Date: Tue, 10 Nov 2009 06:47:13 -0500

C.Breukel@xxxxxxx wrote:

Metol does not dissolve well in sodium sulfite solution so it should be put up separately. AFAIK, the other ingredients can be combined. Richard Knoppow

Isn't the old advice: weight out all the sulphite you need, put from
that amount a pinch in the water volume you need, than add all the metol
and stir..

The reasoning being that you need a tiny bit of sulphite to get the
metol into solution more easily?

No. It is there to keep the Metol from oxidizing before the rest of the sulphite is added. I do not know if it really makes any difference, but I do that. The amount of sulphite I add is about 1/8 to 1/4 teaspoon (not measured) when the amount of sulfite the formula requires is 100 gm.

  .~.  Jean-David Beyer          Registered Linux User 85642.
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