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Título

Copper corrosion originated by propionic acid vapors

AutorEchavarría, A.V.; Rueda, A.; Cano Díaz, Emilio ; Echeverría, F.; Arroyave, C.; Bastidas Rull, José María
Fecha de publicación28-feb-2003
EditorElectrochemical Society
CitaciónJournal of the electrochemical society 150(4): B140-B145 (2003)
ResumenCopper corrosion originated by propionic acid vapors (CH3CH2COOH), ranging from 10 to 300 ppm, at 100% relative humidity, was studied. At 300 ppm pollutant level, the copper corrosion rate was 3.3 mg/dm2 day. The cathodic reduction technique showed that the amount of corrosion products grew with both exposure time and pollutant level. Corrosion products were also characterized using X-ray diffraction and Fourier transform infrared techniques, and their morphology was observed by scanning electron microscope methodology. The main compounds identified were cuprite (Cu2O), copper hydroxide [Cu(OH)2], and a copper propionate compound. Important amounts of an organic copper compound were observed at propionic acid vapor concentrations higher than 50 ppm.
Descripción6 pages.
Versión del editorhttp://dx.doi.org/10.1149/1.1559132
URIhttp://hdl.handle.net/10261/22327
DOI10.1149/1.1559132
ISSN0013-4651
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