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The Measurement and Estimation of the Lower Flash Points for tert-Pentanol + Propionic Acid and p-Xylene + Propionic Acid Systems Using Open-Cup Apparatus  

Ha, Dong-Myeong (세명대학교 보건안전공학과)
Lee, Sung-Jin (세명대학교 임상병리학과)
Publication Information
Fire Science and Engineering / v.23, no.5, 2009 , pp. 161-166 More about this Journal
Abstract
The lower flash points for the tert-pentanol + propionic acid and p-xylene + propionic acid systems were measured by Tag open-cup apparatus. The experimental data were compared with the values calculated by the Raoult's law, the van Laar equation and the NRTL equation. The calculated values based on the van Laar and NRTL equations were found to be better than those based on the Raoult's law. It was concluded that the van Laar and NRTL equations were more effective than the Raoult' law at describing the activity coefficients for non-ideal solution such as the tert-pentanol + propionic acid and p-xylene + propionic acid systems. The predictive curve of the flash point prediction model based on the NRTL equation described the experimentally-derived data more effectively than was the case when the prediction model was based upon the van Laar equation.
Keywords
Flash point; Tag open-cup apparatus; tert-Pentanol + propionic acid; van Laar equation; NRTL equation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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