Peter Marshall (petermarshall@cix.co.uk)
Mon, 18 Jan 1999 19:42 +0000 (GMT)
Making up some stabiliser for colour film today I happened to read the
(German) small print and find that it contains 1.5% of
1,2-Benzisothiazolin-3-on presumably in place of methanal.
It does say it is irritating to eyes and skin, but it may well be a safer
alternative to methanal (and even to glyoxal) for alt-process use though I
don't know it is an effective hardener of gelatin. Perhaps someone else
here would know more on this?
Peter Marshall
On Fixing Shadows and elsewhere:
http://www.people.virginia.edu/~ds8s
Family Pictures, German Indications, London demonstrations &
The Buildings of London etc: http://www.spelthorne.ac.uk/pm/
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