Molecular Interaction of Dimethylsulfoxide with Water and Alkanols : A Vapor Pressure Osmometry Study

디메틸술폭시드와 물 및 알칸올과의 분자 상호작용 : 증기압 삼투법에 의한 연구

  • Eung-Gyun Kim (Department of Chemistry, Chungbuk National University) ;
  • Yongseog Chung (Department of Chemistry, Chungbuk National University) ;
  • Young-Kook Shin (Department of Chemistry, Chungbuk National University)
  • 김응균 (충북대학교 자연과학대학 화학과) ;
  • 정용석 (충북대학교 자연과학대학 화학과) ;
  • 신영국 (충북대학교 자연과학대학 화학과)
  • Published : 1993.08.20

Abstract

Studies on the molecular interactions of dimethylsulfoxide (DMSO) with water and/or some alkanols were carried out by vapor pressure osmometry at 40$^{\circ}C$. 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.

Keywords

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