Excess enthalpies of some halogenized aromatic compounds + methyl methylthiomethyl sulfoxide or + dimethyl sulfoxide at 298.15 K XI. Thermodynamics of liquid mixtures containing methyl methylthiomethyl sulfoxide
“…The excess partial molar enthalpies at infinite dilution of aliphatic nitriles + DMSO were almost the same as those of aliphatic nitriles + MMTSO. The similar results of nitriles {CH 3 (CH 2 ) n CN, n = 6−12} + MMTSO or DMSO were obtained for the mixtures of methylbenzenes, cycloethers, and aliphatic amines {C n H 2 n +1 NH 2 , n = 3−8} + MMTSO, ,, although the mixtures of MMTSO with oxolane, water, chloromethanes, , and alkane-1-ols 5 were different. The excess partial molar enthalpies of nitriles at infinite dilution for aliphatic nitriles + DMSO were less unstable than for those of aliphatic nitriles + MMTSO for all mixture of aliphatic nitriles measured except the mixture containing acetonitrile and propionitrile.…”
Section: Resultssupporting
confidence: 68%
“…Excess enthalpies of {CH 3 (CH 2 ) n CN, n = 0−4} + MMTSO were larger than those of {CH 3 (CH 2 ) n CN, n = 0−4} + DMSO, but excess enthalpies of {CH 3 (CH 2 ) n CN, n = 5−12} + MMTSO were less than those of {CH 3 (CH 2 ) n CN, n = 5−12} + DMSO, respectively. This size effect of aliphatic groups on excess enthalpies is different compared with all other mixtures that were measured for the system containing aliphatic alcohols, aliphatic benzene, and aliphatic amines. ,, 1 Excess enthalpies of (1 − x )C n H 2 n +1 CN + x MMTSO at 298.15 K: 1, n = 1; 2, n = 2; 3, n = 3; 4, n = 4; ·, n = 5; ○, n = 6; ▴, n = 7; ▵, n = 8; ▪, n = 9; □, n = 10; ◆, n = 11; ◇, n = 12; ▾, n = 13. 2 Excess enthalpies of (1 − x )C n H 2 n +1 CN + x DMSO at 298.15 K: 1, n = 1; 2, n = 2; 3, n = 3; 4, n = 4; ·, n = 5; ○, n = 6; ▴, n = 7; ▵, n = 8; ▪, n = 9; □, n = 10; ◆, n = 11; ◇, n = 12; ▾, n = 13.…”
Section: Resultsmentioning
confidence: 83%
“…In our previous papers, − excess thermodynamic functions for the binary mixtures of methyl methylthiomethyl sulfoxide (MMTSO) with water, benzene, dimethyl sulfoxide (DMSO), carbon tetrachloride, chloroform, dichloromethane, deuteriochloroform, n -alkane-1-ols (C n H 2 n +1 OH, n = 1 to 4), six methyl-benzenes {C 6 H 6 - n (CH 3 ) n , n = 1 to 3}, six cycloethers, three aliphatic-ethers, aliphatic benzene {C 6 H 5 (CH 2 ) n CH 3 , n = 0 to 7}, five monohalogenated aromatic compounds (benzene and toluene), six o - and m -dihalogenated benzenes, aliphatic amine {C n H 2 n +1 NH 2 , n = 3 to n = 8}, some nitrile (acetonitrile, propionitrile, butyronitrile, pentanenitrile, benzonitrile), and DMSO were reported.…”
Excess enthalpies of binary mixtures between each of {CH 3 (CH 2 ) n CN (n ) 5-12)} and methyl methylthiomethyl sulfoxide or dimethyl sulfoxide have been determined at 298.15 K. All mixtures show positive enthalpy changes over the whole range of mole fractions. Excess enthalpies of the mixtures of nitriles increased with increasing size of the aliphatic groups. The increments of dipole interaction terms of µ 1 2 µ 2 2 (r 1 + r 2 ) -6 on excess partial molar enthalpies at infinite dilution showed different behavior on the border of pentanenitrile.
“…The excess partial molar enthalpies at infinite dilution of aliphatic nitriles + DMSO were almost the same as those of aliphatic nitriles + MMTSO. The similar results of nitriles {CH 3 (CH 2 ) n CN, n = 6−12} + MMTSO or DMSO were obtained for the mixtures of methylbenzenes, cycloethers, and aliphatic amines {C n H 2 n +1 NH 2 , n = 3−8} + MMTSO, ,, although the mixtures of MMTSO with oxolane, water, chloromethanes, , and alkane-1-ols 5 were different. The excess partial molar enthalpies of nitriles at infinite dilution for aliphatic nitriles + DMSO were less unstable than for those of aliphatic nitriles + MMTSO for all mixture of aliphatic nitriles measured except the mixture containing acetonitrile and propionitrile.…”
Section: Resultssupporting
confidence: 68%
“…Excess enthalpies of {CH 3 (CH 2 ) n CN, n = 0−4} + MMTSO were larger than those of {CH 3 (CH 2 ) n CN, n = 0−4} + DMSO, but excess enthalpies of {CH 3 (CH 2 ) n CN, n = 5−12} + MMTSO were less than those of {CH 3 (CH 2 ) n CN, n = 5−12} + DMSO, respectively. This size effect of aliphatic groups on excess enthalpies is different compared with all other mixtures that were measured for the system containing aliphatic alcohols, aliphatic benzene, and aliphatic amines. ,, 1 Excess enthalpies of (1 − x )C n H 2 n +1 CN + x MMTSO at 298.15 K: 1, n = 1; 2, n = 2; 3, n = 3; 4, n = 4; ·, n = 5; ○, n = 6; ▴, n = 7; ▵, n = 8; ▪, n = 9; □, n = 10; ◆, n = 11; ◇, n = 12; ▾, n = 13. 2 Excess enthalpies of (1 − x )C n H 2 n +1 CN + x DMSO at 298.15 K: 1, n = 1; 2, n = 2; 3, n = 3; 4, n = 4; ·, n = 5; ○, n = 6; ▴, n = 7; ▵, n = 8; ▪, n = 9; □, n = 10; ◆, n = 11; ◇, n = 12; ▾, n = 13.…”
Section: Resultsmentioning
confidence: 83%
“…In our previous papers, − excess thermodynamic functions for the binary mixtures of methyl methylthiomethyl sulfoxide (MMTSO) with water, benzene, dimethyl sulfoxide (DMSO), carbon tetrachloride, chloroform, dichloromethane, deuteriochloroform, n -alkane-1-ols (C n H 2 n +1 OH, n = 1 to 4), six methyl-benzenes {C 6 H 6 - n (CH 3 ) n , n = 1 to 3}, six cycloethers, three aliphatic-ethers, aliphatic benzene {C 6 H 5 (CH 2 ) n CH 3 , n = 0 to 7}, five monohalogenated aromatic compounds (benzene and toluene), six o - and m -dihalogenated benzenes, aliphatic amine {C n H 2 n +1 NH 2 , n = 3 to n = 8}, some nitrile (acetonitrile, propionitrile, butyronitrile, pentanenitrile, benzonitrile), and DMSO were reported.…”
Excess enthalpies of binary mixtures between each of {CH 3 (CH 2 ) n CN (n ) 5-12)} and methyl methylthiomethyl sulfoxide or dimethyl sulfoxide have been determined at 298.15 K. All mixtures show positive enthalpy changes over the whole range of mole fractions. Excess enthalpies of the mixtures of nitriles increased with increasing size of the aliphatic groups. The increments of dipole interaction terms of µ 1 2 µ 2 2 (r 1 + r 2 ) -6 on excess partial molar enthalpies at infinite dilution showed different behavior on the border of pentanenitrile.
“…For the mixture DMSO + 1-propanol, the literature reports values of excess enthalpy at 298.15 K, , values of density and viscosity at (298.15 and 303.15) K and at 308.15 K …”
Excess molar enthalpies, molar heat capacities, densities, viscosities, and refractive indices of dimethyl sulfoxide
+ 1-propanol have been measured at (288.15, 298.15, and 308.15) K and at normal pressure using an LKB
microcalorimeter, a Perkin-Elmer differential scanning calorimeter, an Anton Paar density meter, a Schott-Geräte
AVS unit, and an Abbe refractometer, respectively. Heat capacities of 1-propanol have been determined in the
range 288.15 < T/K < 333.15. The results were fitted to the Redlich−Kister polynomial equation to obtain the
adjustable parameters and standard deviations.
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