화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.32, No.1, 168-177, January, 2015
DOI10.1007/s11814-014-0200-6  Export Citation
Measurement and correlation of excess molar volumes for mixtures of 1-propanol and aromatic hydrocarbons
Suman Gahlyan1, Manju Rani2, Inkyu Lee3, Il Moon3, and Sanjeev Kumar Maken1, 3, †
  • 1Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131 039, India
  • 2Department of Chemical Engineering, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131 039, India
  • 3Department of Chemical and Biomolecular Engineering, Yonsei University, 262, Seongsan-ro, Seodaemun-gu, Seoul 120-749, Korea
E-mail:
Excess molar volumes (Vm E ) have been measured at 303.15 K for 1-propanol+benzene or toluene or o- or m- or p-xylene mixtures using V-shape dilatometer. The Vm E values, for an equimolar composition, vary in the order: benzene>toluene~m-xylene>o-xylene>p-xylene. The Vm E data have been used to calculate partial molar volumes, excess partial molar volumes, and apparent molar volumes of 1-propanol and aromatic hydrocarbons over the entire range of composition. The excess volume data have also been interpreted in terms of graph-theoretical approach and Prigogine-Flory-Patterson theory (PFP). While PFP theory fails to predict the Vm E values for systems with s-shaped Vm E versus x1 graph, the Vm E values calculated by graph theory compare reasonably well with the corresponding experimental values. This graph theory analysis has further yielded information about the state of aggregation of pure components as well as of the mixtures.
Keywords:Molar Excess Volume;Partial Molar Volume;1-Propanol;Aromatic Hydrocarbon;Graph Theoretical Approach;Prigogine-Flory-Patterson Theory
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