Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Selective Solvation of KCl in Some Mixed Solvent Systems

몇 가지 혼합용매 중에서 KCl의 선택적 용매화

  • 황정의 (慶北大學校 自然科學大學 化學科) ;
  • 김학성 (慶北大學校 自然科學大學 化學科) ;
  • 차성극 (慶南大學校 化學科) ;
  • 박의환 (慶山大學校 化學科)
  • Published : 1991.10.20
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Abstract

The solvation numbers of some ions in water and of KCl in mixed solvent systems were measured using the conductometric method. Stoke's radii of ions in solution were calibrated by the Nightingale method and the solvation numbers of ions in mixed solvents were deduced by simple assumptions. The deduced solvation numbers of each solvent reasonably go with its selective properties of solvation. From the isosolvation point of ions, the selective properties of ionic solvation were discussed.

전도도법을 이용하여 물과 물-유기용매계에서 몇 가지 이온들의 용매화수를 측정하였다. 용매화된 이온의 Stokes 반지름을 Nightingale 법으로 보정하였으며, 혼합용매계에서의 각 용매의 용매화수는 몇 가지 가정을 세워 산정하였다. 이와 같이 정한 용매화수는 이온의 선택적 용매화를 나타내었고 등용매화점을 이용하여 이온의 선택적 용매화 정도를 알아보았다.

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