Osmotic and activity coefficients of two macrocyclic aminals in aqueous solution at 288.15, 293.15, 298.15 and 303.15 K

被引:3
|
作者
Blanco, Luis H. [1 ]
Davila, Maria T. [2 ]
机构
[1] Univ Nacl Colombia, Fac Ciencias, LIB, Bogota, Colombia
[2] Univ Nacl Colombia, Manizales, Colombia
关键词
Osmotic coefficients; Activity coefficients; Isopiestic measurement; Aqueous solutions; Temperature dependence; THERMODYNAMIC PROPERTIES; ISOPIESTIC DETERMINATION; GLOBULAR MOLECULES; TEMPERATURES; ADAMANTANE; WATER;
D O I
10.1016/j.fluid.2010.03.012
中图分类号
O414.1 [热力学];
学科分类号
摘要
The osmotic coefficients of 1,3,5,7-tetrazatricyclo (3.3.1.13,7) decane (HMT) and 1,3,6,8-tetrazatricyclo (4.4.1.13,8) dodecane (TATD) in aqueous solutions were measured at 288.15,293.15,298.15 and 303.15 K. The technique used was the isopiestic. The data were used to calculate the activity coefficients of the two solutes at the four temperatures. The few data points found for HMT in literature at 298.15 K agree well with the new data. The reinforcement of water structure by the two aminals is discussed. (C) 2010 Elsevier B.V. All rights reserved.
引用
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页码:237 / 241
页数:5
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