Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 85: Issue 3
Excess enthalpies of water+1,4-dioxane at 278.15, 298.15, 318.15 and 338.15 K
Authors:
T. Suzuki Kinki University Technical College Mie Japan 519-4395 Arima-cho 2800, Kumano

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M. Fujisawa Kinki University Department of Chemistry, Faculty of Science and Technology Higashi-Osaka Japan 577-8502 Kowakae 3-4-1

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S. Takagi Kinki University Department of Chemistry, Faculty of Science and Technology Higashi-Osaka Japan 577-8502 Kowakae 3-4-1

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T. Kimura Kinki University Department of Chemistry, Faculty of Science and Technology Higashi-Osaka Japan 577-8502 Kowakae 3-4-1

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Pages:
545–550
Online Publication Date:
15 Sep 2006
Publication Date:
01 Sep 2006
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-006-7658-3
Keywords:
excess enthalpy; partial molar enthalpy; theoretical calculation; water+1,4-dioxane
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Abstract  

The excess molar enthalpies of (1–x)water+x1,4-dioxane have been measured at four different temperatures. All the mixtures showed negative enthalpies in the range of low mole fraction but positive ones in the range of high mole fraction of 1,4-dioxane. Excess enthalpies were increased with increasing temperature except those of at 278.15 K. Partial molar enthalpies have maximum around x=0.13 and minimum around x=0.75. Three different behaviors for the concentration dependence of partial molar enthalpies were observed for all temperature. Theoretical calculations of molecular interactions of three characteristic concentrations were carried out using the molecular orbital method.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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