Performic Acid in PFAAB, PAS, Orange G

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From:"Sarah Christo" <> (by way of histonet)
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Dear Netters,
   I was wondering how hazardous and what precautions need to be made in
using Performic Acid.  This technique mixes formic acid with hydrogen
peroxide and sulfuric acid.  It says to keep the temperature below 25
degrees C.  It also decomposes in a few hours.  Peracetic Acid (glacial
acetic acid, hydrogen peroxide and sulfuric acid) can be substituted, would
this be any safer???
 Any help would be appreciated.
Thanks, Sarah

Sarah Christo, HT (ASCP)
Texas A&M University
College of Veterinary Medicine
Dept. of Vet. Anatomy & Public Health
Histology Laboratory
College Station, TX  77868-4458
phone (409) 845-3177
fax (409) 847-8981

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