Excess enthalpy, density, and speed of sound determination for the ternary mixture (methyl tert-butyl ether + 1-butanol + n-hexane)

E. MASCATO; A. MARIANO; M. M PIÑEIRO; L LEGIDO, J; PAZ ANDRADE, M I

JOURNAL OF CHEMICAL THERMODYNAMICS

Elsevier

Año: 2007 vol. 39 p. 1247 - 1256

0021-9614

Density, (q), and speed of sound, (u), from T = 288.15 to T = 308.15 K, and excess molar enthalpies, (hE) at T = 298.15 K, have been measured over the entire composition range for (methyl tert-butyl ether + 1-butanol + n-hexane). In addition, excess molar volumes, VE, and excess isentropic compressibility, jEs, were calculated from experimental data. Finally, experimental excess enthalpies results are compared with the estimations obtained by applying the group-contribution models of UNIFAC (in the versions of Dang and Tassios,Larsen et al., Gmehling et al.), and DISQUAC.