화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.55, No.5, 668-678, October, 2017
DOI10.9713/kcer.2017.55.5.668  Export Citation
Ultrasonic Speed and Isentropic Compressibility of 2-propanol with Hydrocarbons at 298.15 and 308.15 K
Suman Gahlyan, Sweety Verma, Manju Rani1, and Sanjeev Maken†
  • Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Murthal-131 039, India
  • 1Department of Chemical Engineering, Deenbandhu Chhotu Ram University of Science and Technology, Murthal-131 039, India
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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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