Date: Thu, 19 Jul 2007 14:26:39 -0600
Reply-To: Margaret-Ann Armour <margaret-ann.armour**At_Symbol_Here**UALBERTA.CA>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: Margaret-Ann Armour <margaret-ann.armour**At_Symbol_Here**UALBERTA.CA>
Subject: re formaldehyde and bleach

In our testing of the oxidation of formalin solution (which is about 
40% formaldehyde in water)  to formic acid with chlorine bleach, we 
found that it is important to dilute the formalin with water (10 ml 
of water for each 1 ml of formalin) before adding the bleach  (25 mL 
for each 1 mL of formalin measured before dilution) and to perform 
all reactions, including the dilution, in the fume hood.  Hope this 
helps. Margaret-Ann Armour
Dr. Margaret-Ann Armour
Associate Dean, Diversity
Faculty of Science
G208 Biological Sciences Bldg
University of Alberta
Edmonton  Alberta
T6G 2E9
Tel:  780 492 7572
Fax: 780 492 0372

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