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Search / Korean Journal of Chemical Engineering
Korean Chemical Engineering Research,
Vol.55, No.5, 668-678, 2017
Ultrasonic Speed and Isentropic Compressibility of 2-propanol with Hydrocarbons at 298.15 and 308.15 K
Gahlyan S, Verma S, Rani M, Maken S
Intermolecular interactions were studied for binary mixtures of 2-propanol + cyclohexane, n-hexane, benzene, toluene, o-, m- and p-xylenes by measuring ultrasonic speeds (u) over the entire range of composition at 298.15 K and 308.15 K. From these results the deviation in ultrasonic speed was calculated. These results were fitted to the Redlich-Kister equation to derive the binary coefficients along with standard deviations between the experimental and calculated data. Acoustic parameters such as excess isentropic compressibility (KsE), intermolecular free length (Lf) and available volume (Va) were also derived from ultrasonic speed data and Jacobson’s free length theory. The ultrasonic speed data were correlated by Nomoto’s relation, Van Dael’s mixing relation, impedance dependence relation, and Schaaff’s collision factor theory. Van Dael’s relation gives the best prediction of u in the binary mixtures containing aliphatic hydrocarbons. The ultrasonic speed data and isentropic compressibility were further analyzed in terms of Jacobson’s free length theory.
Keywords: Ultrasonic speed; Oxygenate; 2-Propanol; Hydrocarbon; Jacobson’s free length theory; Graph theoretical approach
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[Cited By]
  1. Gahlyan S, Verma S, Rani M, Maken S, Korean Journal of Chemical Engineering, 35(5), 1167, 2018
  2. Gahlyan S, Verma S, Rani M, Maken S, Korean Chemical Engineering Research, 56(4), 536, 2018
  3. Verma S, Gahlyan S, Rani M, Maken S, Korean Chemical Engineering Research, 56(5), 663, 2018
  4. Gahlyan S, Devi R, Verma S, Rani M, Park SJ, Maken S, Korean Journal of Chemical Engineering, 37(7), 1181, 2020
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