Ozone

I've found some data on ozone sensitivity for known dyestuffs in the
Colour Index (9 volumes, 1971 3rd ed) to explain why a weaver's
trichromatic dyeing faded out of hue in 3 months in Los Angeles. One
of the dyes used was quite sensitive to ozone. The Color Index
section on in organic Pigments is less forthcoming. You will find
some information on peroxide fading (ozone decomposes to hydrogen
peroxide) at the MCI website

  <URL:http://www.smithsonian.org/mci/english/research/consulting>

under Disasters in a study summarized by David Erhardt "The Effects
of Peroxide Decontamination Reagents on the Chemical and Physical
Properties of Cultural Materials." He focuses on Oxone a potassium
peroxymonosulfate formulation from DuPont. The study was funded by
NCPTT after 9/11. Best wishes,

Mary W. Ballard
Senior Textiles Conservator,
Museum Conservation Institute
Smithsonian Institution
4210 Silver Hill Road
Suitland MD 20746 U.S.A.
301-238-1210
Fax: 301-238-3709


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                  Conservation DistList Instance 24:4
                   Distributed: Sunday, June 13, 2010
                        Message Id: cdl-24-4-006
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