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Frontiers of Chemical Science and Engineering

2013, Volume 7,  Issue 1, Pages 110-115
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    Measurement and correlation of the solid-liquid equilibrium of 2-(

    1. The National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; 2. The Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Institute of New Catalytic Materials Science, College of Chemistry, Nankai University, Tianjin 300071, China

    Available online:2013-03-05
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    10.1007/s11705-013-1316-7
    Cite this article
    Yanhong SUN, Zhiyong LI, Chuang XIE, Wei CHEN, Cui ZHANG.Measurement and correlation of the solid-liquid equilibrium of 2-([J].Frontiers of Chemical Science and Engineering,2013,7(1):110-115.

    Abstract

    In this work, the enthalpy of fusion and melting points of 2-( -butyl)-5-methylphenol (2B5MP) and 2-( -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.

    Keywords

    solid-liquid equilibrium (SLE) ; eutectic ; integrated computer aided system (ICAS) ; TOPEM ; correlation
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