Excess Properties of Binary Mixtures Composed of a Polar Component and an Alkane

Abstract

Mixtures containing a polar component and an alkane show a transitional behaviour between non‐associated and associated mixtures. The excess enthalpy and the excess Gibbs energy can be described by the quasichemical approximation with a temperature dependent interchange parameter. The excess entropy is given by SE = SconfE + SINTE. The first term is due to the non‐randomness of the mixture. The second term is correlated to HE. Using this correlation GE, HE and TSE can be roughly predicted. — Excess enthalpies and vapor pressure data were measured in order to supplement excess property data.

Excess volumes and excess enthalpies of N-methyl-2-pyrrolidone with branched alcohols

“…Moreover, several researchers explicitly elucidated in the literature for the excess enthalpies (H E ) of binary mixtures containing NMP + aromatic hydrocarbons [20,24], +hydrocarbon [21,25,26], or +N-methylcaprolactam [27], +chloroethanes and chloroethenes [28], +an ether [23]. However, no effort appears to have been made to collect the V E and H E for the mixtures of NMP with branched alkanols and there is no evidence for specific interactions between of NMP with branched alkanols.…”

Excess molar volumes, and excess molar enthalpies of (N-methyl-2-pyrrolidinone+ an ether ) at the temperature 298.15 K

“…Excess molar volumes V E m of {NMP + water, (4,5) or an aromatic hydrocarbon (benzene, or methyl benzene, or 1,2-dimethylbenzene, or 1,3-dimethylbenzene, or 1,4-dimethylbenzene, or 1,3,5-trimethylbenzene, or ethylbenzene), (6,7) or an n-alkanol (C 1 to C 8 ), (8) or an isoalkanol (C 3 to C 5 ), (9) or a 1-alkanol (C 1 to C 3 ), or a hydrocarbon (cyclohexane, cyclooctane, cyclohexene, benzene, 1-hexene, 1-octene, 1-hexyne, and 1-octyne), (10) or 1-hexyne, or 1-heptyne, or 1-octyne} (11) have been reported in the literature. Excess molar enthalpies H E m of (NMP + water), (12) or (NMP + benzene, or 1,4-dimethylbenzene, or toluene, or cyclohexane), (13) or (NMP + ethanolamine, or n-heptane, or cyclohexane, or benzene), (14) or (NMP + n-heptane), (15) or (NMP + 1-hexyne, or 1-heptyne, or 1-octyne), (11) or (NMP + an aromatic hydrocarbon), (7) or (NMP + N-methylcaprolactam) (16) have also been reported in the literature.…”

The excess molar volumes and enthalpies of (N-methyl-2-pyrrolidinone+ an alcohol) atT= 298.15 K and the application of the ERAS theory

“…Continuing our research into the thermodynamic excess functions of mixtures containing N -methyl-2-pyrrolidinone (NMP), (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13) we present here excess molar volumes and excess molar enthalpies for (NMP + an alcohol). NMP is a heterocyclic, polar solvent used for the a Visiting Ph.D. student from the Faculty of Chemistry, Physical Chemistry Division, Warsaw University of Technology.…”