Journal of the Korean Institute of Gas (한국가스학회지)

The Korean Institute of GAS (한국가스학회)
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The Measurement of Lower Flash Point for tert-Pentanol+n-Decane System Using Tag Open-Cup Tester

Tag 개방식 장치를 이용한 tert-Pentanol+n-Decane 계의 하부인화점 측정

  • Ha, Dong-Myeong (Dept. of Occupational Health and Safety Engineering, Semyung University) ;
  • Lee, Sungjin (Dept. of Clinical Laboratory Science, Semyung University)
  • 하동명 (세명대학교 보건안전공학과) ;
  • 이성진 (세명대학교 임상병리학과)
  • Received : 2012.09.09
  • Accepted : 2012.10.25
  • Published : 2012.10.31
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Abstract

The flash point the lowest temperature at which the concentration of vapor of the substance in the air reaches the lower flammability limit(LFL), and is one of the most important physical properties used to determine the potential for fire and explosion hazards of industrial materials. The most published flash point data was for pure components and the flash points of the binary solutions that have flammable components, appear to be scarce in the literature. In the present study, the flash points of tert-pentanol+n-decane system were measured by Tag open-cup tester. The measured data were compared with the values calculated by the Raoult's law and the optimization methods based on the Wilson and NRTL equations. The calculated values by optimization methods were found to be better than those based on the Raoult's law.

인화점은 공기 속 가연성 증기의 농도가 연소하한계(lower flammability limit)에 도달할 때의 최저 온도이며, 산업현장에서 사용하는 물질들의 화재와 폭발의 위험성을 결정하는 중요한 물성치이다. 단일 성분의 인화점 정보는 여러 문헌에서 얻을 수 있으나, 이성분계 혼합물의 인화점은 충분히 제공되어 있지 않다. 본 연구에서는 tert-pentanol+n-decanel 계의 인화점을 Tag 개방식 장치를 이용하여 측정하였다. 실험값은 Raoult의 법칙과, Wilson 식과 NRTL 식을 활용한 최적화 기법에 의해 계산된 값들과 비교되었다. 최적화 기법에 의한 계산값이 Rauolt의 법칙에 의한 계산값 보다 실험값에 더욱 근접하였다.

Keywords

References

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