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Measurement and correlation of the solid-liquid equilibrium of 2-(tert-buty)-5-methylphenol and 2-(tert-buty)-4-methylphenol binary system
Received date: 19 Sep 2012
Accepted date: 28 Dec 2012
Published date: 05 Mar 2013
Copyright
In this work, the enthalpy of fusion and melting points of 2-(tert-butyl)-5-methylphenol (2B5MP) and 2-(tert-butyl)-4-methylphenol (2B4MP) were measured by differential scanning calorimetry (DSC). The binary solid-liquid equilibrium (SLE) of both compounds were predicted by integrated computer aided system (ICAS) and measured by DSC. The corresponding eutectic molar composition is 0.6998 and the eutectic temperature is 281.96 K. The quasi-static heat capacities of 2B5MP and 2B4MP were evaluated by stochastic temperature modulation DSC technique (TOPEM). The SLE experimental data were correlated using the Margules, Wilson, and non-random two liquid (NRTL) equations and a good agreement between measurement and calculation could be obtained.
Yanhong SUN , Zhiyong LI , Chuang XIE , Wei CHEN , Cui ZHANG . Measurement and correlation of the solid-liquid equilibrium of 2-(tert-buty)-5-methylphenol and 2-(tert-buty)-4-methylphenol binary system[J]. Frontiers of Chemical Science and Engineering, 2013 , 7(1) : 110 -115 . DOI: 10.1007/s11705-013-1316-7
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