Ultrasonic velocity and absorption measurements in several binary mixtures with pyridine

Abstract

Ultrasonic velocity and absorption measurements have been made with binary liquid mixtures of pyridine with heavy water, phenol, and tertbutyl alcohol. These measurements were conducted with pulsed ultrasound at a frequency of 19.5 MHz. The data was taken at several temperatures between 15° and 40°C. By taking measurements at several concentrations of each liquid mixture, information about the molecular association between the two different molecules in the liquid mixture was obtained. Previous work has been done with binary mixtures of pyridine with water, methanol, and ethanol [K. N. Thomas and F. B. Stumpf, J. Acoust. Soc. Am. 53, 714–718 (1973)].