대한화학회지 (Journal of the Korean Chemical Society)

  • 제15권6호
  • /
  • Pages.378-384
  • /
  • 1971
  • /
  • 1017-2548(pISSN)
  • /
  • 2234-8530(eISSN)
대한화학회 (Korean Chemical Society)
권호 표지

분광광도법에 의한 8-(p-Ethylbenzenesulfonamido) quinoline과 구리와의 착물에 관한 연구

Spectrophotometric Study on the Complex of the Copper by 8-(p-Ethylbenzenesulfonamido) quinoline

  • 이흥낙 (경북대학교 문리과학대학 화학과) ;
  • 박영규 (영남대학교 공과대학 화공과) ;
  • 이철희 (영남대학교 공과대학 화공과)
  • Heung Lark Lee ;
  • Yung Kyu Park (Department of Chemical Engineering, College of Engineering, Yung Nam University) ;
  • Chul Heui Lee (Department of Chemical Engineering, College of Engineering, Yung Nam University)
  • 발행 : 1971.12.30
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초록

A new analytical reagent 8-(p-ethylbenzenesulfonamido)quinoline(EBSQ) has been synthesized, and identified its structure. EBSQ forms copper chloroform-soluble complex in a basic solution (pH = 7.5∼10.5). The other optimum conditions for the spectrophotometric study of Cu-EBSQ have been established at 380 $m{\mu}$. Beer's law is followed in the concentration range of 0~44.5 ${\mu}g$ per 10 ml of chloroform. The composition of complex has been found to be $Cu(EBSQ-H)_2$and the over-all instability constant is calculated to be $1.22{\times}10^{-7}$. The absorption coefficient of the $Cu(EBSQ-H)_2$ complex is ${\varepsilon}$ = 15,800.

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