Shear viscosities of binary mixtures of polar solutes nitromethane, nitroethane, and 2-nitropropane with nonpolar aromatic solvents benzene, p-xylene, and mesitylene at 293.15 K

1988 ◽  
Vol 33 (4) ◽  
pp. 402-404 ◽  
Author(s):  
Raja R. Yadava ◽  
Sarvanand S. Yadava ◽  
Vishwa N. Singh
Keyword(s):  
Binary Mixtures ◽  
Aromatic Solvents ◽  
Polar Solutes

Enthalpies of interaction of polar and nonpolar molecules with aromatic solvents

1982 ◽  
Vol 60 (15) ◽  
pp. 1953-1958 ◽  
Author(s):  
Richard Fuchs ◽  
L. Alan Peacock ◽  
W. Kirk Stephenson
Keyword(s):  
Hydroxyl Group ◽  
Enthalpies Of Solution ◽  
Butyl Ether ◽  
Aromatic Solvent ◽  
Aromatic Solvents ◽  
Induced Dipole ◽  
Or Groups ◽  
Polar Solutes ◽  
Base Method ◽  
Heats Of Vaporization

Enthalpies of solution of representative ketones, phenols, alcohols, and ethers have been determined in α,α,α-trifluorotoluene, benzene, toluene, and mesitylene, and combined with heats of vaporization to give enthalpies of transfer from vapor to the aromatic solvents [ΔH(v→S)]. Comparison of these values with ΔH(v→S) of nonpolar model compounds provides an estimate of the special interactions (dipole – induced dipole or charge transfer, and hydrogen bonding) of the polar solutes with each aromatic solvent. Unless the model compound is perfectly matched, an alternative procedure, the pure base method, is superior for evaluating hydrogen bonding.The special interactions of ketones and ethers with aromatic solvents increase with decreasing π electron density of the solvent. By contrast, m-cresol shows the strongest special interaction with the most electron-rich solvent (mesitylene > toluene > benzene > trifluorotoluene). These results demonstrate that —OH and —OR groups undergo quite different interactions, and that a distinctive interaction occurs between the hydroxyl group and the aromatic ring.Calorimetric heats of vaporization have been measured for the solutes n-butyl ether (10.68 ± 0.02 kcal/mol), 2,2,4,4-tetramethylpentane (9.20 ± 0.03), n-pentane (6.36 ± 0.02), 1-butanol (12.46 ± 0.00), and 2-methyl-2-butanol (11.94 + 0.02).

Physiсo-chemical properties of binary mixtures of aliphatic and aromatic solvents at 313 K on acoustical data

2015 ◽  
Vol 89 (13) ◽  
pp. 2373-2380
Author(s):  
S. L. Dahire ◽  
Y. C. Morey ◽  
P. S. Agrawal
Keyword(s):  
Binary Mixtures ◽  
Chemical Properties ◽  
Aromatic Solvents ◽  
Acoustical Data

Limiting activity coefficients in dilute solutions of nonelectrolytes. I.Determination for polar–nonpolar binary mixtures by a novel apparatus, and a solubility-parameter treatment of results

1982 ◽  
Vol 60 (21) ◽  
pp. 2697-2706 ◽  
Author(s):  
Etela Milanová ◽  
Genille C. B. Cave
Keyword(s):  
Binary Mixtures ◽  
Activity Coefficients ◽  
Solubility Parameter ◽  
Butyl Acetate ◽  
Dipole Interaction ◽  
Polar Compounds ◽  
Polar Component ◽  
Nonpolar Solvents ◽  
Induced Dipole ◽  
Polar Solutes

The activity coefficients of several solutes in dilute binary solutions of nonelectrolytes were determined at 20 °C from vapour–liquid equilibria in a novel static equilibration apparatus, by gas-chromatographic analysis of the equilibrium vapor phase. The solutes were nitromethane, nitroethane, 1-nitropropane, 2-nitropropane, acetonitrile, propionitrile, ethyl acetate, and n-butyl acetate in n-heptane and in benzene as solvents, and also carbon tetrachloride as solute in each of the above-listed polar compounds as the solvent.The modifications by Weimer and Prausnitz and by Blanks and Prausnitz to the Scatchard–Hildebrand equation in order to accommodate binary mixtures containing a polar component were tested by using the values found in the present work for the limiting activity coefficients of these solutes. In addition, it was found that the ratio of the dipole – induced dipole interaction parameter for polar solutes in the two nonpolar solvents was nearly constant.Three methods for evaluating the dispersion contribution to the solubility parameter of a polar compound were considered.

A NUCLEAR MAGNETIC RESONANCE INVESTIGATION OF MOLECULAR COMPLEXES OF POLAR MOLECULES IN AROMATIC SOLVENTS

1962 ◽  
Vol 40 (7) ◽  
pp. 1285-1290 ◽  
Author(s):  
J. V. Hatton ◽  
W. G. Schneider
Keyword(s):  
Molecular Complex ◽  
Molecular Complexes ◽  
Large Temperature ◽  
Proton Resonance ◽  
Aromatic Solvents ◽  
Temperature Coefficients ◽  
Molecular Complex Formation ◽  
Nuclear Magnetic Resonance Investigation ◽  
Polar Solutes ◽  
Magnetic Resonance Investigation

In order to confirm the existence of specific molecular complexes in solutions of polar solutes in aromatic solvents previously proposed, the temperature variation of the proton resonance shifts of the solutes acetonitrile, p-benzoquinone, and N,N-dimethylformamide in 5 mole% concentration in toluene were measured. The large temperature coefficients of the solute shifts observed strongly support molecular complex formation. For the same solutes dissolved in methylcyclohexane the temperature coefficients were negligibly small. The temperature at which onset of free rotation of the N-dimethyl group of N,N-dimethylformamide occurs is solvent and concentration dependent. These observations are consistent with the proposed geometry of the molecular complex in the aromatic solvents.

Thermoreversible gelation in binary mixtures of poly(di-n-alkylsilanes) and aromatic solvents

1991 ◽  
Vol 24 (5) ◽  
pp. 1215-1217 ◽  
Author(s):  
T. J. Lenk ◽  
R. L. Siemens ◽  
V. M. Hallmark ◽  
R. D. Miller ◽  
J. F. Rabolt
Keyword(s):  
Binary Mixtures ◽  
Aromatic Solvents ◽  
Thermoreversible Gelation

The non-coincidence effect in N,N-dimethylformamide-CCl 4 highly diluted binary mixtures. Experimental and theoretical results

2000 ◽  
Vol 98 (12) ◽  
pp. 783-791 ◽  
Author(s):  
M. G. Giorgini, M. Musso, A. Asenbaum,
Keyword(s):  
Binary Mixtures ◽  
Coincidence Effect ◽  
Theoretical Results

The non-coincidence effect in highly diluted acetone—CCl4 binary mixtures I. Experimental results and theoretical predictions

1997 ◽  
Vol 92 (1) ◽  
pp. 97-104
Author(s):  
M. MUSSO ◽  
M.G. GIORGINI ◽  
G. DOGE ◽  
A. ASENBAUM
Keyword(s):  
Binary Mixtures ◽  
Experimental Results ◽  
Theoretical Predictions ◽  
Coincidence Effect

Thermodynamic properties of binary mixtures containing thiaalkanes

1980 ◽  
Vol 77 ◽  
pp. 445-449 ◽  
Author(s):  
Zohra Ferhat-Hamida ◽  
Robert Philippe ◽  
Jean-Claude Merlin ◽  
V. Kehiaian
Keyword(s):  
Thermodynamic Properties ◽  
Binary Mixtures
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