Abstract
The self-association of cyclohexylamine (CHA) in water at 25°C was investigated by measuring the fluoroscence spectrum and intensity of ammonium 8-anilino-1-naphthalenesulfonate as a fluorescent probe. The surface tension of an aqueous solution of CHA was also measured with a Du Nouy tensiometer at 25°C. CHA formed self-association in water, and the association was micellar. The critical micelle concentration of CHA in water at 25°C was estimated as 0.5-0.6 M by the fluorescence method, and this value coincided with that of 0.54M obtained by the surface tension method.
