Ultrasonic absorption properties of methyl cyanide + water mixtures

摘要: Ultrasonic absorption properties have been determined for water + methyl cyanide mixtures at 273, 298 and 308 K over the frequency range 1.5-230 MHz using a travelling pulse technique, qualitatively examined 200–1 500 kHz reverberation apparatus. Sound velocities in these measured 2 an acoustic interferometer. The variation of ultrasonic with (1.5-230 MHz) is analyzed two ways; (i) assuming that there are discrete relaxation frequencies, (ii) expression which follows from treatment by Romanov Solovyev concentration fluctuations. latter analysis has advantage it identifies those where volume, Gibbs function enthalpy control magnitude sound absorption. provides interaction lengths lm diffusion coefficients, D, mixtures.