作者
Aurora López‐Delgado, E Cano, JM Bastidas, FA López
发表日期
1998/12/1
期刊
Journal of the Electrochemical Society
卷号
145
期号
12
页码范围
4140
出版商
IOP Publishing
简介
ABSTRACT A study was made of the copper corrosion rate and corrosion products originated by the action of acetic acid vapor at 100% relative humidity. Copper plates were exposed to an acetic acid contaminated atmosphere for a period of 21 days. Five acetic vapor concentration levels were used. The copper corrosion rate was in the range of 1 to 23 mg/din2 day. The corrosion-product layers were characterized using electrochemical, X-ray powder diffraction, Fourier transform infrared spectrometry, and scanning electron microscopy techniques. Thermal and calorimetric studies were also performed. Some of the compounds identified were cuprite (Cu, O), copper acetate hydrate [Cu (CH, COO) 22H, O], and copper hydroxide acetate [Cu4 (OH)(CH, COO) 72H20]. This last compound was also characterized. The thickness of the patina layers was 4 to 8 nm for amorphous cuprite, 11 to 48 nm for cuprite, and 225 …
引用总数
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A López‐Delgado, E Cano, JM Bastidas, FA López - Journal of the Electrochemical Society, 1998