Journal
THERMOCHIMICA ACTA
Volume 424, Issue 1-2, Pages 83-90Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.tca.2004.05.009
Keywords
excess enthalpy; MMTSO; DMSO; aliphatic alcohols; excess partial molar enthalpy
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Excess enthalpies of nine mixtures between methyl methylthiomethyl sulfoxide (MMTSO) or dimethyl sulfoxide (DMSO) and each of aliphatic alcohols {CH3(CH2)(n)OH, n = 3-11} have been determined at 298.15 K. All the systems show the positive enthalpies over the whole range of mole fraction. Excess enthalpies of MMTSO + alcohols are larger than that of DMSO + alcohols and increased with increasing the number of methylene groups of alcohols. The excess partial molar enthalpies at infinite dilution of butane-1-ol showed the boundary between the two linear relationships obtained between those of MMTSO or DMSO and dipole-dipole interaction of aliphatic alcohols {CH3 (CH2)(n) OH, n = 0-11}-sulfoxides. (C) 2004 Elsevier B.V. All rights reserved.
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