Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Electric Conductance of Dilute Solutions of Lithium, Sodium and Potassium Chloride in Isopropanol_Water Mixtures

이소프로판올-물 混合溶媒中의 리튬, 나트륨 및 칼륨 鹽化沕 溶液의 電導度

  • Byung-Rin Cho (Department of Chemical Engineering, Inha University) ;
  • Yong-Ja Lee (Department of Chemical Engineering, Inha University) ;
  • Jae-Bin Kim (Department of Chemical Engineering, Inha University)
  • 조병린 (仁荷大學校 工科大學 化學工學科) ;
  • 이영자 (仁荷大學校 工科大學 化學工學科) ;
  • 김재빈 (仁荷大學校 工科大學 化學工學科)
  • Published : 1976.08.30
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Abstract

The conductances of dilute solutions of LiCl, NaCl and KCl in a series of isopropanol-water mixtures were determined at $30^{\circ}C$. The values of equivalent conductance agreed well with Debye-Huckel-Onsager equation and the limiting equivalent conductance was greatly reduced as the isopropanol content of the solvent was increased in accord with predictions based on solvent viscosity and dielectric properties. Also, the limiting equivalent conductance increased in sequence ${\Lambda}_{0,LiCl} < {\Lambda}_{0,NaCl} < {\Lambda}_{0,KCl} in 0.0, 0.1 and 0.2 mole fraction isopropanol, but {\Lambda}_{0,LiCl} < {\Lambda}_{0,KCl} < {\Lambda}_{0,NaCl} in 0.3 mole fraction ispropanol. The maximum Walden product, {\Lambda}_{0{\eta}0}$ was found in 0.1 mole fraction isopropanol for all electrolytes.

여러 組成의 isopropanol-물 混合溶媒中에서 LiCl, NaCl 및 KCl의 稀薄溶液의 電導導를 測定하였다. 그結果, 濃度에 따르는 當量電鍍度의 변화가 Debye-Huckel-Onsager 식에 대해서 좋은 一致를 보였다. 또한 溶媒中의 isopropanol 組成이 증가함에 따라 極限當量電導度${\Lambda}_0의 값이 급격히 減少하며 이것은 溶媒의 粘度增加 및 誘導常數의 감소로부터 예측되는 바와 같다. 그리고 isopropanol의 몰分率이 0.0, 0.1 및 0.2인 溶媒中에서는 {\Lambda}_0가 {\Lambda}_{0,LiCl} < {\Lambda}_{0,NaCl} < {\Lambda}_{0,KCl}의 順으로 증가하고 있으나, 0.3 몰分率 isopropanol-물中에서는 {\Lambda}_{0,LiCl} < {\Lambda}_{0,KCl} < {\Lambda}_{0,NaCl}의 順으로 바뀌고 있다. 또한 Walden product {\Lambda}_{0{\eta}0}$는 0.1몰分率 isopropanol-물中에서 最大値를 보여 주었다.

Keywords

References

  1. J. Korean Chem. Soc. v.15 B. R. Cho
  2. J. Korean Chem. Soc. v.15 B. R. Cho;Y. J. Lee;I. Lee
  3. Trans. Electrochem. Soc. v.66 T. Shedlovsky;A. S. Brown;D. A. MacInnes
  4. J. Amer. Chem. Soc. v.99 K. A. Krieger;M. Kilpatrick
  5. J. Phys. Chem. v.65 J. E. Lind, Jr.;R. M. Fnoss
  6. J. Phys. Chem. v.69 J. L. Hawes;R. L. Kay
  7. J. Chem. Soc. S. H. Hartley;E. D. Copley
  8. J. Phys. Chem. v.61 R. M. Fuoss;L. Onsager
  9. Electrolytic Conductance R. M. Fuoss;F. Accascina
  10. An Introduction to Electrochemistry S. Glasstone
  11. Lange's Handbook of Chemistry
  12. J. Phys. Chem. v.67 F. T. Tuan;R. M. Fuoss
  13. Physik. Z. v.24 P. Debye;E. Huckel
  14. Physik. Z. v.25 P. Debye;E. Huckel
  15. Trans. Faraday Soc. v.23 L. Onsager
  16. J. Phys. Chem. v.33 P. Debye;H. Falkenhagen
  17. The Physicochemical Constants of Binary Systems in Concentrated Solutions v.4 J. Timmermans
  18. J. Phys. Chem. v.72 J. Padova
  19. Z. Physik. Chem. v.107 P. Walden(et al.)
  20. Trans. Faraday Soc. v.23 P. Walden(et al.)
  21. J. Chem. Soc. v.1245 J. E. Coates;E. G. Taylor
  22. J. Phys. Chem. v.43 L. G. Longsworth;D. A. MacInnes