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Journal of Korean Institute of Fire Science and Engineering 2007;21(4):32-37.
Published online December 31, 2007.
클리브랜드 개방식 장치를 이용한 2-propanol+acid류 계의 하부 인화점 측정 및 예측
하동명, 이성진
1세명대학교 보건안전공학과2세명대학교 임상병리학과
The Measurement and Estimation of Lower Flash Point for 2-Propanol+Acid Systems Using Cleveland Open Cup Apparatus
Ha Dong-Myeong, Lee Sung-Jin
인화점의 정보를 확보하는 것은 화재 및 폭발의 예방을 위해 대단히 중요하다. 본 연구에서는 2-propanol+acetic acid 계와 2-propanol+n-propionic acid 계의 하부 인화점을 클리브랜드 개방식 장치를 이용하여 측정하였다. 실험값은 Raoult의 법칙, Wilson 식과 NRTL 식에 의해 계산된 값과 비교하였다. 그 결과, Wilson 식과 NRTL 식에 의한 예측값이 Raoult의 법칙에 의한 예측값 보다 실험값에 더욱 근접하였다. 또한, NRTL 식의 실험값에 대한 모사성이 Wilson 식의 그것 보다 우수하였다.
An accurate knowledge of the flash point is important in developing appropriate preventive and control measures in industrial fire protection. The lower flash points for the 2-propanol+acetic acid and 2-propanol+-n-propionic acid systems were measured by Cleveland open cup apparatus. The experimental data were compared with the values calculated by the Raoult's law, the Wilson equation and the NRTL(non random two liquids) equation. The calculated values based on the Wilson and NRTL equations were found to be better than those based on the Raoult's law. And the predictive curve of the flash point prediction model, based on NRTL equation described the experimentally-derived data were more effective than the case of the Wilson equation.
Key Words: Lower flash point, Cleveland open cup apparatus, 2-Propanol+acetic acid system, 2-Propanol+-n-propionic acid system, Wilson equation

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