Speed of sound estimation for some ionic liquids from density and surface tension data

From density and surface tension data, speed of sound estimation was performed for some ionic liquids. Because the experimental data of speed of sound for ionic liquids is very scarce the predictive methods can be useful. The selected ionic liquids were: 1-Ethyl-3-methylimidazolium tetra fluoroborate, 1-propyl-3-methylimidazoliumtetrafluoroborate, 1-buyl-3-methylimidazolium tetra fluoroborate, 1-pentyl-3-methylimidazolium tetrafluoroborate,1-hexyl-3-methylimidazolium tetra fluoroborate and 1-butyl-3-methylpyridinium tetra fluoroborate. Speed of sound data along with density data can be used for calculation of some thermodynamic properties such as isentropic compressibility, isothermal compressibility, and isobaric thermal expansivities. The calculated values were compared with the experimental data. Good agreement was observed between the experimental and predicted data.

کلیدواژه ها:

Speed of sound ، Density ، Surface tension ، Ionic liquids