Oxidative Damage and the Preservation of Organic Artefacts

Abstract

Organic artefacts degrade by a number of mechanisms. Autoxidation is one of the most important and involves free radicals. The importance of free radical reactions in the degradation of paper and other cellulosic materials, rubber and other organics is described. In the case of paper, treatment with calcium and magnesium compounds can inhibit oxidation, while transition metals increase the rate. Antioxidants have not been used a great deal due to unwanted side effects. The Russell effect, a technique for detecting oxidation using photographic materials, is described.

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