Chromic acid

Cihat Uzun asks about the possible use of chromic acid in
conservation. I would strongly recommend against this.  Chromic acid
is very corrosive and toxic and is believed to be a carcinogen.  It
is harmful to the environment.  It used to be used for cleaning
glassware in chemistry laboratories, but this was discontinued a
long time ago, and I can't think of any legitimate use for it in
conservation.  Don't use it!

Dr Barry Knight
Head of Conservation Research
The British Library
96 Euston Road
London NW1 2DB
+44 20 7412 7229
Fax: +44 20 7412 7658


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                  Conservation DistList Instance 23:34
                 Distributed: Thursday, March 11, 2010
                       Message Id: cdl-23-34-004
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