Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Studies on the Dissociation Constants of Benzoic Acids in Ethanol-Water Mixtures by Conductometric Method

에탄올-물 혼합용매에서 전도도법에 의한 벤조산의 해리상수에 관한 연구

  • Min Soo Cho (Department of Chemistry, Chonnam National University) ;
  • Soon Ki Lee (Department of Chemistry, Chonnam National University) ;
  • Lee, Gye Su (Department of Chemistry, Chonnam National University)
  • 조민수 (전남대학교 자연과학대학 화학과) ;
  • 이순기 (전남대학교 자연과학대학 화학과) ;
  • 이계수 (전남대학교 자연과학대학 화학과)
  • Published : 1981.04.30
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Abstract

The dissociation constants of benzoic acid, p-methoxybenzoic acid and p-nitrobenzoic acid have been determined at $25^{\circ}C$ in ethanol-water mixtures containing 0, 10, 20, 30, 40, 50, 65 and 80 weight % ethanol by the direct conductance measurements and the method involving titration of the acid sample with perchloric acid reagent. The results by the two methods have been discussed and compared with those by other methods.

벤조산, 파라메톡시벤조산 및 파라니트로벤조산의 산해리상수를 $25^{\circ}C$에서 메탄올의 무게퍼센트가 0, 10, 20, 30, 40, 50, 65 및 80%인 에탄올-물 혼합용매중에서 직접 전도도를 측정하는 방법과 약산의 시료를 과염소산용액으로 적정하면서 전도도를 측정하는 방법으로 구하고, 이 두가지 방법으로 구한 결과를 검토하고 다른 방법과 비교하였다.

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