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Received February 22, 2006
Accepted May 29, 2006
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Hydroxylic molecular interaction by measurement of ultrasonic velocity as a function of temperature: Ethanol+water+1-pentanol
Departamento de Ingenier´ia Qu´imica, Universidad del Pais Vasco, Apto. 450, Vitoria, Spain 1Departament d’Enginyeria Qu´imica, Escola T`ecnica Superior d’Enginyeria Qu´imica, Universitat Rovira i Virgili, Avinguda Pa"isos Catalans 26, Campus Sescelades, 43007 Tarragona, Spain
iqpredij@vc.ehu.es
Korean Journal of Chemical Engineering, November 2006, 23(6), 977-990(14), 10.1007/s11814-006-0018-y
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Abstract
An analysis of different thermodynamic properties as a function of temperature provides valuable information about their characteristics. The ultrasonic velocity of the ternary mixtures ethanol+water+1-pentanol at the range 288.15-323.15 K and atmospheric pressure, has been measured over the whole concentration range. The experimental ultrasonic velocities have been analysed in terms of different theoretical models, an adequate agreement between the experimental and predicted values both in magnitude and sign being obtained, despite the high non-ideal trend and partial miscibility of the ternary mixture studied in this work. The obtained experimental values indicate varying extent of interstitial accommodation among unlike molecules as a function of steric hindrance attending to 1-pentanol as key component and as a function of hydrogen bond and temperature attending to ethanol as key component.
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References
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Cibulka I, Collect. Czech. Chem. Commun., 55(7), 1653 (1990)
Danusso F, Atti Accad. Nazl. Lince.i, 10, 235 (1951)
Eyring H, Kincaid JF, J. Chem. Phys., 6, 620 (1938)
Gaiser M, Bell GM, Lim AW, Roberts NA, Faraday DBF, Schultz RA, Grob R, J. Food Eng., 51, 27 (2002)
Gayol A, Iglesias M, Concha CG, Goenaga JM, Gonzalez C, Resa JM, “Effect of temperature on thermophysicalmagnitudes of (ethanol+aliphatic elcohols (c4-c5)) mixtures,” J. M. Phys. Chem. Liq. (2005) (submitted for publication) (2005)
Gonzalez C, Iglesias M, Lanz J, Resa JM, Thermochim. Acta, 328(1-2), 277 (1999)
Jacobson B, Acta Chemica Scandinavica, 6, 1485 (1952)
Marquardt DW, J. Soc. Indust. Appl., Math, 2, 431 (1963)
Nomoto O, J. Phys. Soc. Jpn., 13, 1528 (1968)
Nutsch-kuhnkies R, Acustica, 15, 383 (1965)
Orge B, Iglesias M, Marino G, Dominguez M, Pineiro M, Tojo J, Fluid Phase Equilib., 170(1), 151 (2000)
Orge B, Iglesias M, Rodriguez A, Canosa JM, Tojo J, Fluid Phase Equilib., 133(1-2), 213 (1997)
Redlich O, Kister AT, Ind. Eng. Chem., 40, 345 (1948)
Resa JM, Gonzalez C, Goenaga JM, Iglesias M, J. Solution Chem., 33, 169 (2004)
Schaaffs W, Molekularakustic; eine einfuehurng in die zusammenhaenge zwischen ultrachall and molecuelstruktur in fluessigkeiten und gasen, Springer Verlag, Bonn (1963)
Schaffs W, Acustica, 33, 272 (1975)
Aminabhavi TM, Aralaguppi MI, Gopalakrishna B, Khinnavar RS, J. Chem. Eng. Data, 39(3), 522 (1994)
TRC Thermodynamic Tables (Thermodynamic Research Center, Texas A&M University: College Station, TX, 1994)
