Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 92: Issue 2
Excess enthalpies of ketone+methyl methylthiomethyl sulfoxide or +dimethyl sulfoxide at 298.15 k
Authors:
T. Kimura Kinki University Department of Chemistry Kowakae, Higashi-osaka 577-8502 Japan

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T. Sato Kinki University Department of Chemistry Kowakae, Higashi-osaka 577-8502 Japan

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M. Hirota Kinki University Department of Chemistry Kowakae, Higashi-osaka 577-8502 Japan

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S. Takagi Kinki University Department of Chemistry Kowakae, Higashi-osaka 577-8502 Japan

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Pages:
381–389
Online Publication Date:
22 Jun 2008
Publication Date:
01 May 2008
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-007-8956-0
Keywords:
acetophenone; 2-alkanones; CH3CO(CH2)nCH3; dimethyl sulfoxide; excess enthalpy; methyl methylthiomethyl sulfoxide
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Abstract  

Excess enthalpies of sixteen binary mixtures between one each of methyl methylthiomethyl sulfoxide (MMTSO) and dimethyl sulfoxide (DMSO) and one of ketone {CH3CO(CH2)nCH3, n=0 to 6 and CH3COC6H5} have been determined at 298.15 K. All the mixtures showed positive excess enthalpies over the whole range of mole fractions. Excess enthalpies of ketone+MMTSO or DMSO increased with increasing the number of methylene radicals in the methyl alkyl ketone molecules. Excess enthalpies of MMTSO+ketone are smaller than those of DMSO+ketone for the same ketone mixtures. The limiting excess partial molar enthalpies of the ketone, H1E,∞, in all the mixtures with MMTSO were smaller than those of DMSO. Linear relationships were obtained between limiting excess partial molar enthalpies and the number of methylene groups except 2-propanone.

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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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