Hydrogen gas production during corrosion of copper by water |
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| Authors: | G. Hultquist,M.J. Graham,P. Szakalos,G.I. Sproule,A. Rosengren,L. Grå sjö |
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| Affiliation: | aSurface and Corrosion Science, Royal Institute of Technology, SE-100 44 Stockholm, Sweden;bInstitute for Microstructural Sciences, National Research Council of Canada, Ottawa, Canada KIA 0R6;cCondensed Matter Theory, Royal Institute of Technology, AlbaNova University Center, SE-109 91 Stockholm, Sweden;dDanderyd’s Upper Secondary School, SE-182 36 Danderyd, Sweden |
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| Abstract: | This paper considers the corrosion of copper in water by: (1) short term, open system weight measurements and (2) long term, closed system immersion in distilled water (13,800 h) without O2 at 21–55 °C. In the latter experiments, the hydrogen gas pressure is measured above the immersed copper and approaches ∼10−3 bar at equilibrium. This pressure is mostly due to copper corrosion and greatly exceeds that in ambient air. Accordingly, this measured hydrogen pressure from copper corrosion increases with temperature and has the same dependency as the concentration of OH− in the ion product [OH−] [H+]. |
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| Keywords: | A. Copper A. Platinum B. Weight loss B. SIMS C. Oxidation C. Hydrogen permeation |
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