Thermodynamics of Mixtures of Aromatic Hydrocarbons with Alkanols Studied by Light Scattering

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Title:Thermodynamics of Mixtures of Aromatic Hydrocarbons with Alkanols Studied by Light Scattering
Creators:
Munk, Petr
Cheng, Weizhuang
Qin, Anwei
Pouchlý, Julius
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 66, 7, pp. 1011-1037
Uncontrolled Keywords:Benzenes, Thermodynamics, Binary mixtures, Association equilibrium, Aromatic hydrocarbons, Alcohols, Gibbs energy of mixing, Light scattering, Arenes

Abstract

Measurement of light scattering of mixtures of aromatic hydrocarbons (benzene, toluene, ethylbenzene) and alkanols (methanol, ethanol, propan-1-ol, butan-1-ol, pentan-1-ol) having sufficiently different refractive indices, produced rather reliable thermodynamic data. From these data it was possible to deduce the composition dependence of the change in Gibbs energy of mixing ∆<i>G</i><sub>mix</sub>. These dependences were measured for eleven binary mixtures. A model of alcohol molecules forming linear aggregates which are in equilibrium was developed and used for interpretation of the data. All ∆<i>G</i><sub>mix</sub> data for the eleven mixtures as well as the ∆<i>H</i><sub>mix</sub> data obtained for these mixtures from literature could be interpreted using just two values that characterized the Gibbs energy and enthalpy of the formation of hydrogen bonds. The analysis also yielded plausible results concerning the contact interactions. <p>

Title:Thermodynamics of Mixtures of Aromatic Hydrocarbons with Alkanols Studied by Light Scattering
Creators:
Munk, Petr
Cheng, Weizhuang
Qin, Anwei
Pouchlý, Julius
Uncontrolled Keywords:Benzenes, Thermodynamics, Binary mixtures, Association equilibrium, Aromatic hydrocarbons, Alcohols, Gibbs energy of mixing, Light scattering, Arenes
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:66
Number:7
Page Range:pp. 1011-1037
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20011011UNSPECIFIED
ID Code:1840
Item Type:Article
Deposited On:06 Feb 2009 17:13
Last Modified:06 Feb 2009 16:13

Citation

Munk, Petr; Cheng, Weizhuang; Qin, Anwei; Pouchlý, Julius (2001) Thermodynamics of Mixtures of Aromatic Hydrocarbons with Alkanols Studied by Light Scattering. Collection of Czechoslovak Chemical Communications, 66 (7). pp. 1011-1037. ISSN 0010-0765

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