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Title

Copper corrosion initiated by butyric acid vapors

AuthorsCano Díaz, Emilio CSIC ORCID ; Mora, E. M.; Azcaray, H.; Bastidas Rull, José María CSIC ORCID
Issue Date18-Feb-2004
PublisherElectrochemical Society
CitationJournal of the Electrochemical Society 151(4): B207-B213 (2004)
AbstractCopper corrosion initiated by butyric acid vapors [CH3(CH2)2COOH] ranging from 0.1 to 100 ppm at 100% relative humidity was studied. The copper corrosion rate at 0.1 and 100 ppm pollutant levels was 8.5 and 630 mg m–2 d–2, respectively. Corrosion products were characterized using X-ray diffraction and X-ray photoelectron spectroscopy analyses and their morphology was observed by scanning electron microscopy (SEM). The main compounds identified were cuprite and a copper butyrate compound. The amount of cuprite decreased as the pollution level increased. Copper butyrate was observed from the lowest concentrations, and its amount increased with the butyric acid vapor concentration. The patina formed was very porous and provided little protection to the underlying copper.
Description7 pages.
Publisher version (URL)http://dx.doi.org/10.1149/1.1649234
URIhttp://hdl.handle.net/10261/22330
DOI10.1149/1.1649234
ISSN0013-4651
Appears in Collections:(CENIM) Artículos

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