EXCESS MOLAR ENTHALPIES FOR BINARY SYSTEMS OF N-ALKANE + 1-ALKANOL SYSTEMS AT 313.15 K

摘要

Excess molar enthalpies for binary mixtures of n-alkane (n-ocatne, n-nonane and n-decane) + 1-alkanol (ethanol, 1-propanol and 1-butanol) systems have been measured by using a flow-type isothermal microcalorimeter at 313.15 K and 101.325 kPa. The experimental values of excess molar enthalpies are all positive for these mixtures at entire composition range. The maximum excess enthalpy values are observed between x_i = 0.6 to 0.8 ranges. The measured experimental values were correlated by Redlich-Kister equation with 5 coefficients. The experimental data were also correlated using the nonrandom lattice fluid equation of state with hydrogen bonding (NLH-HB EoS) suggested by current authors. With a single temperature dependent interaction parameter, the experimental data were correlated with reasonable accuracy.