From: Tom Ferguson (tomf2468@pipeline.com)
Date: 03/13/02-09:21:27 AM Z
How long can a sealed bottle of 40% glyoxal be kept? Its intended use is
hardener for gelatin for gum prints.
I just found an unopened bottle (still in its sandwich bag) from ??? at the
back of my closet. I am under the impression (don't know from where) that
glyoxal goes bad over time. Other than testing/printing on paper, is there a
way to tell good from old/bad glyoxal?
-- Tom Ferguson http://www.ferguson-photo-design.com
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