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Detox cure for art treasures

: Jelen, E.; Weber, A.; Unger, A.; Eisbein, M.


Pesticide outlook 14 (2003), No.1, pp.7-9
ISSN: 0956-1250
Journal Article
Fraunhofer UMSICHT Oberhausen ()
Kunstschätze; Entgiftung; Dekontamination; überkritisches Kohlendioxid; Holzschutzmittel; Pestizid; Lindan; art treasure; detoxification; decontamination; supercritical carbon dioxide (scCO2); wood preservation; pesticide; dichlorodiphenyltrichloroethane (DDT); pentachlorophenol (PCP); lindane

From 1950 to the 1980, it was quite common to protect wood against insects and micro-organisms with PCP, DDT and lindane. Though the adverse effect of this practice was only recognized later: Lindane and PCP evaporate into the air, while DDT often builds up a white crystalline coating on the surface of the wood. A new method to remove unsightly pesticide residues from wooden art treasures using supercritical carbon dioxide as an extraction solvent is described.