Journal of Chemical Thermodynamics, Vol.41, No.4, 522-524, 2009
Thermochemical behaviour of crown ethers in the mixtures of water with organic solvents. Part IX. Effect of base-acid properties of {(1-x)AN plus xH(2)O} on the solution enthalpy of cyclic ethers in this mixed solvent at T=298.15 K
The enthalpies of solution of cyclic ethers: 1,4-dioxane, 12-crown-4 and 18-crown-6 in {(1 - x)AN + xH(2)O) have been measured over the whole mole fraction range at T = 298.15 K. Based on the results obtained, the effects of base-acid properties of mixed solvent and the number of -CH2CH2- groups in cyclic ethers molecules on the solution enthalpy of cyclic ethers in {(1 - x)AN + xH(2)O) have been analyzed. (C) 2008 Elsevier Ltd. All rights reserved.