Open AccessChemical Composition of the Copper/Benzotriazole Interface in the Presence of Acetic Acid Vapour at Low Humidities
Author(s) -
E. Cano,
David M. Bastidas,
J. Simancas,
J. A. López-Caballero,
J. M. Bastidas
Publication year - 2004
Publication title -
adsorption science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.682
H-Index - 36
eISSN - 2048-4038
pISSN - 0263-6174
DOI - 10.1260/0263617042879447
Subject(s) - benzotriazole , copper , chemistry , cuprite , acetic acid , x ray photoelectron spectroscopy , inorganic chemistry , nuclear chemistry , hydroxide , relative humidity , organic chemistry , chemical engineering , physics , engineering , thermodynamics
Studies were made of the chemical composition of the copper products formed at 43, 58 and 78% relative humidity (RH) in contaminated (10-ppm acetic acid vapour) and uncontaminated environments in the presence and absence of the volatile corrosion inhibitor benzotriazole (BTA) for 7 d at 30°C. Such studies were conducted using X-ray photoelectron spectroscopy (XPS). General XPS spectra over a wide binding energy region showed C and O peaks in addition to those corresponding to the different copper compounds. Copper specimens exposed to acetic acid vapour in the presence of BTA also exhibited N emissions. The main compounds formed were cuprite (Cu2O), copper hydroxide [Cu(OH 2], copper acetate and copper-benzotriazole (Cu-BTA) complexes.Peer Reviewe