Solubility of a solute mixture (iodine + anthracene) in binary and ternary solvent mixtures of xylenes with or without toluene. Comparison with the ideal-like solution model

2000 ◽  
Vol 32 (3) ◽  
pp. 349-354 ◽  
Author(s):  
Xiao-Wu Jin ◽  
Zhi-Chang Wang
Keyword(s):  
Solution Model ◽  
Solvent Mixtures ◽  
The Ideal

Comment on "Thermodynamics of solvent mixtures. I. Density and viscosity of binary mixtures of N-methylpyrrolidinone – tetrahydrofuran and propylene carbonate – acetonitrile"

1987 ◽  
Vol 65 (2) ◽  
pp. 456-457 ◽  
Author(s):  
Norman Gee ◽  
Gordon R. Freeman ◽  
A. V. Anantaraman
Keyword(s):  
Recent Work ◽  
Binary Mixtures ◽  
Propylene Carbonate ◽  
Interaction Parameter ◽  
Dynamic Viscosity ◽  
Kinematic Viscosity ◽  
Solvent Mixtures ◽  
Ideal Mixture ◽  
Deviation Parameter ◽  
The Ideal

In the recent work of Anantaraman (Can. J. Chem. 64, 46 (1986)) the conversion from kinematic viscosity to dynamic viscosity was incorrect. We calculated correct values from the tabulated data. We also give corrected values of the ideal mixture viscosity, the Grunberg–Nissan deviation parameter, and the Hind interaction parameter.

Dielectric Properties of Binary Solvent Mixtures

2020 ◽  
Author(s):  
Noritoshi Nambu
Keyword(s):  
Dominant Factor ◽  
Binary Solvent ◽  
Solvent Mixtures ◽  
Ideal Solution ◽  
Dilute Solution ◽  
Effective Dipole Moment ◽  
Straight Line ◽  
Kister Equation ◽  
Factor Governing ◽  
The Ideal

The relative permittivity is a measure of the solvent’s ability to insulate opposite charges from each other and has a very significant effect on the strength of the interactions between ions especially in dilute solution. I describe the relative permittivities, εr(sln) of nonaqueous mixtures as a function of the composition at 25 ºC. Experimental data were fitted with the Redlich-Kister equation. I explained the deviation from the ideal solution in terms of the magnitude of the coefficient a0. a0 is a dominant factor governing the Redlich-Kister equation. The decrease in a0 made a plot of εr(sln) vs. x2 close to a straight line, which corresponded to the ideal solution. The cohesive forces between dissimilar components resulted in the increased effective dipole moment and, consequently, in the small negative value of a0.

Examination of the inert solvent assumption in the ideal associated solution model. Enthalpy of chloroform–triethylamine complex dissociation

1989 ◽  
Vol 67 (7) ◽  
pp. 1153-1157 ◽  
Author(s):  
John F. Smith ◽  
Loren G. Hepler
Keyword(s):  
Complex Formation ◽  
Binary Mixtures ◽  
Excellent Agreement ◽  
Binary Systems ◽  
Solution Model ◽  
Ideal Associated Solution Model ◽  
Inert Solvent ◽  
Associated Solution Model ◽  
Associated Solution ◽  
The Ideal

We have made new measurements of the enthalpies of adding cyclohexane to mixtures of chloroform + triethylamine + cyclohexane at 25 °C. The results of these measurements have been analysed in terms of the ideal associated solution model to obtain ΔHθ for the dissociation of the chloroform-triethylamine complex. Our value of ΔHθ is in excellent agreement with a published value that was obtained from results of measurements on binary mixtures of chloroform + triethylamine. This agreement indicates that it is usefully accurate to treat mixtures of chloroform + triethylamine + cyclohexane as ideal mixtures of chloroform, triethylamine, cyclohexane, and chloroform-triethylamine complex. This result has important implications for studies of associated systems dissolved in "inert" solvents and helps to provide a connection between complex formation in dilute solutions and in binary systems (A + B, no solvent). Keywords: ideal associated solution model, chloroform, triethylamine, inert solvent, hydrogen bonded complex.

Thermodynamics of complex formation in chloroform + 1,4-dioxane

1989 ◽  
Vol 67 (7) ◽  
pp. 1225-1229 ◽  
Author(s):  
L. Barta ◽  
Z. S. Kooner ◽  
L. G. Hepler ◽  
G. Roux-Desgranges ◽  
J.-P. E. Grolier
Keyword(s):  
Complex Formation ◽  
Solution Model ◽  
Vapor Pressures ◽  
Chemical Interactions ◽  
Ideal Solution Behavior ◽  
Ideal Associated Solution Model ◽  
Thermodynamics Of Complex Formation ◽  
Associated Solution Model ◽  
Associated Solution ◽  
The Ideal

We have made new measurements of excess heat capacities and excess volumes of mixtures of chloroform and dioxane. In combination with published vapor pressures and excess enthalpies the results have been analyzed using the ideal associated solution model to yield K, ΔHθ, ΔCpθ, and ΔVθ for the formation of AB and A2B complexes. It is demonstrated that the ideal associated solution model is consistent with all of the available thermodynamic data for this system, indicating that chemical interactions of the two components can account for nearly all of the deviations from ideal solution behavior. The results of our thermodynamic analysis are discussed in relation to the results of similar analyses of other systems in which there are strong chemical interactions of chloroform with electron-donor molecules. Keywords: complex formation, hydrogen bonding, ideal associated solution model, chloroform, 1,4-dioxane.

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