Corrosion Chemistry of Copper: Formation of Potentially Skin-Diffusible Compounds

J. Hostynek,
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引用次数: 4

Abstract

Copper and its alloys are subject to chemical reactions on exposure to environmental or physiological factors, whereby products are potentially generated which become diffusible through mammalian skin. The chemistry of oxidation is reviewed as well as the factors contributing to corrosion. Skin exudates (sweat and sebum) can react with metal surfaces they come in contact with, but even in the healthy organism their composition is variable, as a function of physical, pharmacological and environmental conditions, gender, age, sweat rate or body site. This overview addresses sweat and sebum composition, and discusses components which determine the skin’s corrosive action: chloride ion, low-molecular-weight acids and amino acids in sweat, and fatty acids in sebum, which hold the potential to solubilize copper-containing metal objects. These components can form copper salts and soaps whose molecular characteristics (size and polarity) will determine the rate and route of cutaneous penetration.
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铜的腐蚀化学:潜在表面扩散化合物的形成
铜及其合金在暴露于环境或生理因素时会发生化学反应,由此产生的产品可能会通过哺乳动物的皮肤扩散。综述了氧化的化学性质以及引起腐蚀的因素。皮肤渗出物(汗液和皮脂)可以与它们接触的金属表面发生反应,但即使在健康的生物体中,它们的成分也是可变的,这是物理、药理和环境条件、性别、年龄、出汗率或身体部位的函数。本文概述了汗液和皮脂的组成,并讨论了决定皮肤腐蚀作用的成分:氯离子、汗液中的低分子量酸和氨基酸、皮脂中的脂肪酸,它们具有溶解含铜金属物体的潜力。这些成分可以形成铜盐和铜皂,其分子特性(大小和极性)将决定皮肤渗透的速度和途径。
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Acknowledgement to Referees for Exogenous Dermatology 2004 Contents Vol. 3, 2004 Author Index Vol. 3, 2004 Is There Evidence that Geraniol Causes Allergic Contact Dermatitis? Subject Index Vol. 3, 2004
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