アルコール混合溶液中の音速度の圧力依存性

概要

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The ultrasonic velocities of the mixtures of benzyl alcohol and methanol, ethanol, n-propanol and n-butanol were measured with a high pressure type ultrasonic interferometer at a frequency 4 MHz. The measuring pressure was up to 300 atm and the measuring temperature was 30℃. The ultrasonic velocities of these alcohol mixtures increased with the increase of pressure parabolically and decreased with the temperature rise linearly. As an illustrating example of experimental results, the pressure and temperature dependence of the ultrasonic velocities in these mixtures were shown in Fig. 1 and 2 for the mixtures of benzyl alcohol and n-propanol. From these results, the non-linearity parameter, B/A, were determined. These values were summerized in table 5-8. As is seen in these tables, the non-linearity parameters were almost constant in spite of the fact that the pressure coefficients of ultrasonic velocities varied lineary with the mole fraction in each of the alcohol mixtures.
社団法人日本音響学会の論文
1973-08-01