Abstract The densities have been measured at temperatures from (273.65–473.15) K and pressures up to 140.1 MPa for toluene, at temperatures from (298.15–433.15) K and pressures up to 100.1 MPa for tetradecane, and 1-chlorohexane. The speeds of sound in liquid toluene and 1-chlorohexane have been measured over the temperature range from (298.15–433.15) K under pressures up to 100.1 MPa. The relative combined expanded uncertainty in the measurement of the density is 0.0003, and of the speed of sound is 0.001, both for 0.99 level of confidence. The values of the heat capacity at constant pressure and at constant volume, isobaric thermal expansivities, isothermal and isentropic compressibilities have been calculated at temperatures between 273.15 K and 473.15 K at pressures up to 140 MPa for toluene, at temperatures between 293.15 K and 433.15 K at pressures up to 100 MPa, for tetradecane, and at temperatures between 298.15 K and 433.15 K at pressures up to 100 MPa for 1-chlorohexane.

中文翻译：

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压缩液体区域中甲苯、十四烷和 1-氯己烷的密度、声速和衍生的热力学性质

摘要 在 (273.65–473.15) K 的温度和高达 140.1 MPa 的压力下测量了甲苯的密度，在 (298.15–433.15) K 的温度和高达 100.1 MPa 的压力下测量了十四烷和 1-氯己烷。已在 (298.15–433.15) K 的温度范围内在高达 100.1 MPa 的压力下测量了液体甲苯和 1-氯己烷中的声速。密度测量中的相对组合扩展不确定度为 0.0003，声速为 0.001，两者的置信水平均为 0.99。恒定压力和恒定体积下的热容值、等压热膨胀率、等温和等熵压缩率的计算是在 273.15 K 和 473.15 K 之间的温度下，甲苯的压力高达 140 MPa，温度在 293.15 K 和 433 之间。