Effect of NaCl on the excess enthalpies of binary liquid systems

被引:2
|
作者
Friese, T [1 ]
Schulz, S [1 ]
Ulbig, P [1 ]
Wagner, K [1 ]
机构
[1] Univ Dortmund, Lehrstuhl Thermodynam, D-44221 Dortmund, Germany
关键词
alcohol; cyclohexane; excess enthalpies; flow calorimetry; sodium chloride; water;
D O I
10.1016/S0040-6031(97)00386-9
中图分类号
O414.1 [热力学];
学科分类号
摘要
The excess molar enthalpies h(1+23)(E), of ethanol+(water+NaCl), benzylalcohol+(water+NaCl), and cyclohexane+(methanol+NaCl) were measured at 298.15 K, those of methanol+(water+NaCl) at 298.15 and 323.15 K. An LKB flow microcalorimeter was used and a special flow-mix cell was developed with regard to the corrosive electrolyte solutions. Knowing the integral enthalpy of solution and the solution enthalpy at infinite dilution for a salt (3) in a solvent (2), the molar excess enthalpy h(123)(E), can be calculated. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:87 / 94
页数:8
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