J.IIC-CG VOLUME 8 & 9 (1983/1984)
A Re-examination of Vapour Phase Chlorine Dioxide Bleaching of Works of Art on Paper
Bleaching of watercolours and prints which are fragile or have water-soluble ink or paint is a well-known conservation problem. Vapour phase chlorine dioxide presents a possible solution, but requires special precautions and equipment because of its toxicity. An apparatus was designed for vapour phase chlorine dioxide bleaching, and was subsequently tested to verify its safety with respect to the operator and the work to be bleached. Deacidification after bleaching was found to be an important part of the procedure.
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