Excess molar enthalpies of {diethyl oxalate plus (methanol, plus ethanol,+1-propanol, and+2-propanol)} at T = (288.2, 298.2, 313.2, and 328.2) K and p=101.3 kPa

作者：Liu, Jia; Wang, Yihe; Yan, Weidong^*

来源：Journal of Chemical Thermodynamics, 2013, 64: 167-171.

DOI：10.1016/j.jct.2013.05.024

• Excess molar enthalpy
• Diethyl oxalate
• Alcohols
• NRTL
• UNIQUAC

A flow-mixing isothermal microcalorimeter was used to measure excess molar enthalpies for four binary systems of {diethyl oxalate + (methanol, + ethanol, + 1-propanol, and + 2-propanol)} at T = (288.2, 298.2, 313.2, and 328.2) K and p = 101.3 kPa. The densities of the diethyl oxalate at different temperature were measured by using a vibrating-tube densimeter. All systems exhibit endothermic behaviour over the whole composition range, which means that the rupture of interactions is energetically the main effect. The excess molar enthalpies increase with temperature and the molecular size of the alcohols. The experimental results were correlated by using the Redlich-Kister equation and two local-composition models (NRTL and UNIQUAC).

• 出版日期2013-9
• 单位浙江大学