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제122회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Freeze Protected Sanitary Liquid for Winter-season

등록일
2018년 9월 1일 18시 17분 34초
접수번호
2185
발표코드
IND.P-27 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 19일 (금요일) 11:00~12:30
발표형식
포스터
발표분야
Industrial Chemistry
저자 및
공동저자
Heeseok Woo, Gyoyoon Chae, Jae Ku Jung, Won-Seok Chae*
Division of Life Science and Chemistry, Daejin University, Korea
A sanitary liquid was prepared to prevent freezing in winter. The solution is a hygiene solution containing alcohols as a main component and a surfactant added thereto. 25% and 15% of ethanol and isopropyl alcohol were mixed, respectively, and 1% of benzalkonium chloride was added as a surfactant. The solution did not freeze for 48 hours at a temperature of minus 30 degrees. In addition, the solutions diluted to 75% and 50% did not freeze at -20 and -10° C, respectively. The concentration at which ethanol does not freeze at about -30 ° C is about 50%, and isopropyl alcohol is about 70%. However, when the two solvents were mixed with water, they did not freeze even at the lower concentration due to the synergistic effect of the colligative properties of a solution. The solution diluted to 25% was showed the 99.9% sterilizing power against Escherichia coli, Pseudomonas aeruginosa, Pneumococcus, Salmonella.

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