Infrared study of the adsorption of linoleic acid on alumina immersed in carbon tetrachloride

Abstract

Infrared spectra are reported of alumina discs immersed in solutions of linoleic acid in carbon tetrachloride. Both associative molecular adsorption and dissociative chemisorption of linoleic acid on alumina occurred. The chemisorption reaction led to the formation of adsorbed linoleate species and surface hydroxyl groups or molecular water. At least some of the adsorbed linoleate species were orientated such that segments of their hydrocarbon chains were close to the alumina surface.