Prediction of temperature dependence of the excess volume: (∂VE/∂T)p and (∂2VE/∂T2)p for 1-alkanol + an alkane binary systems in terms of an associated mixture model

The predictive ability of the model proposed by Treszczanowicz and Benson [Fluid Phase Equilib. 23 (1985) 117] is tested for temperature dependence of the excess volume: excess molar isobaric thermal expansion defined as ApE=(∂VE/∂T)p and (∂2VE/∂T2)p for binary systems formed by an 1-alkanol (from C2 to C12) and an alkane (from C4 to C14) for all available literature data. The model equations for these properties are expressed as sums of the three contributions: self-association described by athermal associated mixture model and free volume and non-specific interactions described by Flory equation of state. The model correctly predicts ApE and sign of temperature derivative (∂2VE/∂T2)p for regarded class of mixtures. Moreover, the model predicts complex shape of the ApE curve and its temperature changes for diluted 1-decanol in n-hexane solutions.