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학술발표회초록보기

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제122회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Oxidation Power Enhancement of Hypochlorite by pH-Control

등록일
2018년 9월 2일 08시 14분 43초
접수번호
2186
발표코드
ELEC.P-507 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 19일 (금요일) 11:00~12:30
발표형식
포스터
발표분야
Electrochemistry
저자 및
공동저자
Gyoyoon Chae, Heeseok Woo, Jae Ku Jung, Won-Seok Chae*
Division of Life Science and Chemistry, Daejin University, Korea
Hypochlorite, which is widely used as an oxidizing agent for disinfection, could be increased in oxidizing power by pH-control. The increased oxidizing power was confirmed by the potentiometry, and the cyclic voltammetry was used for confirming the reduction potential change of hypochlorite ion. The reduction-oxidation potential (ORP) was positively shifted at pH 7 or below. In cyclic voltammogram, the reduction potential of hypochlorite was observed around -0.2 V and shifted to +0.3 V after the addition of a citric acid or hydrochloric acid. The enhanced oxidizing power of the mixtures was confirmed by a 5-minutes contact disinfection test of harmful bacteria (Escherichia coli and Staphylococcus aureus), in which the concentrations of hypochlorite were 40 ppm.

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