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Corrosion of copper in water free from molecular oxygen
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Inorganic Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Inorganic Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Inorganic Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström.
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2014 (English)In: Corrosion Engineering, Science and Technology, ISSN 1478-422X, E-ISSN 1743-2782, Vol. 49, no 6, 431-434 p.Article in journal (Refereed) Published
Abstract [en]

The possibility of copper reacting with O-2-free water has been investigated by analysis of primary corrosion products, as well as by monitoring gas pressure change by time, in long term experiments for up to 6 months in a glove box environment. We establish hydrogen production, but being of the same magnitude irrespective whether copper is present or not. Although low, the hydrogen production rate is considerably larger than what would directly correspond to the amount of analysed copper oxidation products. Our analyses encompass the changes to the surface cleaned copper (99.9999%), the water phase and the Duran glass in contact with the water (ppt quality). We have used very sensitive methods (XPS, AES, ICP-MS, XRF) while keeping contamination risks to a minimum. We conclude that the oxidation rate of copper is very low, yielding only parts of a monolayer of Cu2O after 6 months of exposure at 50 degrees C together with an accompanying very low concentration of copper species (4-5 mu g L-1) in the water phase.

Place, publisher, year, edition, pages
2014. Vol. 49, no 6, 431-434 p.
Keyword [en]
Copper corrosion, Pure water, Nuclear waste canister
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-241537DOI: 10.1179/1743278214Y.0000000199ISI: 000346129000007OAI: oai:DiVA.org:uu-241537DiVA: diva2:779800
Available from: 2015-01-13 Created: 2015-01-13 Last updated: 2017-12-05Bibliographically approved

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Boman, MatsBerger, RolfAndersson, YvonneHahlin, MariaBjörefors, FredrikGustafsson, TorbjörnOttosson, Mikael

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Boman, MatsBerger, RolfAndersson, YvonneHahlin, MariaBjörefors, FredrikGustafsson, TorbjörnOttosson, Mikael
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Inorganic ChemistryDepartment of Chemistry - ÅngströmStructural Chemistry
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