メタノール〜四塩化炭素混合溶液中の音速度の温度・圧力依存性

概要

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The ultrasonic velocities of the mixtures of methanol and carbon tetracholoride were measured with a high pressure type ultrasonic interferometer at a frequency of 4 MHz. The resulting pressure was up to 300 atm. and the measuring temperature range was from -10゜C to 40゜C. The ultrasonic velocities of these mixtures increased with the increase of pressure parabolically and decreased with the temperature rise linearly. As an example to illustrate the experimental results, the pressure dependence of the ultrasonic velocities in these mixtures are shown in Fig. 1. From these results, the non-linear parameter, B/A, was determined. These values are summerized in Table 2. and shown in Fig. 2. As seen in Table 2 and Fig. 2, the non-linear parameter shows a maximum at 0. 7-0. 8 mole fraction of carbon tetrachloride. The curves of the relation between the ultrasonic velocities and the mole fraction of carbon tetrachloride are a minimum in all pressure and temperature ranges. The mole fraction at a minimum showed, x_min, shifted to the carbon-tetrachloride side with increase of the pressure and to the methanol side with increase of the temperature. (Fig. 5).
社団法人日本音響学会の論文
1974-04-01