Thread: D-76 h
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Old 4th December 2021, 10:10 AM
Lostlabours Lostlabours is offline
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Quote:
Originally Posted by Stocky View Post
I noticed on Ian Grant's web site several Kodak variants with only a little borax and quite a lot of boric acid, including this one (above). I wondered why the pH wouldn't be too low for normal development. Were these for a particular purpose?
The lower pH slows development and that helps produce finer grain, it has to be remembered that at 100g per litre the Sodium Sulphite acys as a mild Silver solvent but some of that Silver re-plates onto developed Silver particles.

Ian
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