Speed of sound estimation for some ionic liquids from density and surface tension data
کد مقاله : 1346-PHYSCHEM20
محبوبه بهروزی *
چکیده مقاله:
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 tetrafluoroborate, 1-propyl-3-methylimidazolium tetrafluoroborate, 1-buyl-3-methylimidazolium tetrafluoroborate, 1-pentyl-3-methylimidazolium tetrafluoroborate , 1-hexyl-3-methylimidazolium tetrafluoroborate and 1-butyl-3-methylpyridinium tetrafluoroborate. Speed of sound data along with density data can be used for calculation of some thermodynamic properties such as isentropic compressibility 𝜅s, isothermal compressibility 𝜅T, and isobaric thermal expansivities αp. 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
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