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KMID : 1059519930370080753
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Journal of the Korean Chemical Society
1993 Volume.37 No. 8 p.753 ~ p.756
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Molecular Interaction of Dimethylsulfoxide with Water and Alkanols : A Vapor Pressure Osmometry Study
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Kim Eung-Gyun
Chung Yong-Seog
Shin Young-Kook
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Abstract
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Studies on the molecular interactions of dimethylsulfoxide (DMSO) with water and/or some alkanols were carried out by vapor pressure osmometry at 40℃. Negative deviation from Raoult's law was observed for the DMSO-water, methanol, ethanol, 1-propanol, 2-propanol, and 2-methyl-1-propanol systems, whereas positive deviation from Raoult's law was observed for the DMSO-1-butanol and 1-pentanol systems. The results were interpreted in terms of molecular interactions between unlike molecules, and of self-association of DMSO molecules, respectively. Measured chemical shift of hydroxyl proton of the solvents also supported the results.
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