Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Flash Point Measurement of n-Propanol+n-Hexanol and n-Butanol+n-Hexanol Systems Using Seta Flash Closed Cup Tester

Seta Flash 밀폐식 장치를 이용한 n-Propanol+n-Hexanol계와 n-Butanol+n-Hexanol계의 인화점 측정

  • Ha, Dong-Myeong (Department of Occupational Health and Safety Engineering, Semyung University) ;
  • Lee, Sungjin (Department of Clinical Laboratory Science, Semyung University)
  • 하동명 (세명대학교 보건안전공학과) ;
  • 이성진 (세명대학교 임상병리학과)
  • Received : 2018.10.10
  • Accepted : 2018.12.18
  • Published : 2019.02.28
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Abstract

Flash point is the important indicator to determine fire and explosion hazards of liquid solutions. In this study, flash points of n-propanol+n-hexanol and n-butanol+n-hexanol systems were obtained by Seta flash tester. The methods based on UNIFAC equation and multiple regression analysis were used to calculate flash point. The calculated flash point was compared with the experimental flash point. Absolute average errors of flash points calculated by UNIFAC equation are $2.9^{\circ}C$ and $0.6^{\circ}C$ for n-propanol+n-hexanol and n-butanol+n-hexanol, respectively. Absolute average errors of flash points calculated by multiple regression analysis are $0.5^{\circ}C$ and $0.2^{\circ}C$ for n-propanol+ n-hexanol and n-butanol+n-hexanol, respectively. As can be seen from AAE, the values calculated by multiple regression analysis are noticed to be better than the values by the method based on UNIFAC eauation.

Keywords

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Fig. 1. Comparison of experimental flash points with calculated flash points for n-propanol(1)+n-hexanol(2) system.

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Fig. 2. Comparison of experimental flash points with calculated flash points for n-butanol(1)+n-hexanol(2) system.

Table 1. Antoine coefficients of pure components

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Table 2. Estimated lower explosive limit(LELm), normal boiling point(Tnb,m) and average number of carbon atoms(n) for n-propanol(1)+n-hexanol(2) system

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Table 3. Estimated lower explosive limit(LELm), normal boiling point(Tnb,m) and average number of carbon atoms(n) for n-butanol(1)+n-hexanol(2) system

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Table 4. Estimated and mearsured flash points for n-propanol(1) +n-hexanol(2)

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Table 5. Estimated and mearsured flash points for n-butanol(1) +n-hexanol(2)

HOJHB0_2019_v34n1_34_t0005.png 이미지

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