酢酸エステル中の音速度の圧力, 温度依存性
Pressure and Temperature Dependence of the Sound Velocities of Alkyl Acetates

Hiroyasu Nomura, Akinori Kuroki, Yutaka Miyahara
1971 Acoustical Science and Technology  
measured pressure was up to 300 atm . , and the temperature range was from 5℃ to 35℃ . The ultrasonic velocities of these esters increased with the increase of pressure parabolically , as shown in Fig .3to Fig.5and decreased with the temperature rise Ilnearly as shown in Fig. 6. From these results , the non 。 linear 置 ty parameters , BIA , were determined, These values were summarized in Tahle 1. As is seen in Table エ , non . 1三 nearity parameters were almost co 皿 pletely due to the pressure
more » ... to the pressure dependence of sound vel ・ city and independent of the temperature ・ 圏 On the basis of the oscilator 一 皿 odel of 1 三 quid , the following equation was derived ; 11σ ( ∂C ! ∂P ) ! β T = ( n 十 m 十 3 ) ノ 6 From this equation , the indexes of Mie ' s potential, n 十 m , were dete . rmined from the data of the pressure dependence of the sound veloc 玉 ty and iso ・ thermal compressibility , These va1 ロ es were summarized 三 n Table 3, which were i エ1 good agreement with the data obtained
doi:10.20697/jasj.27.10_524 fatcat:3zxlhdrdozb5vp4g3klua6mndi