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Journal ArticleDOI

Solute‐Solute Interactions in Aqueous Solutions

John J. Kozak, +2 more
- 15 Jan 1968 - 
- Vol. 48, Iss: 2, pp 675-690
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TLDR
In this article, the authors interpreted solvent-solute interactions in aqueous solutions of nonelectrolytes using both lattice and distribution function theories of the dissolved state.
Abstract
Solute‐solute interactions in aqueous solutions of nonelectrolytes are interpreted using both lattice and distribution function theories of the dissolved state. Experimental activity data of high precision can be obtained from the literature for aqueous solutions of many nonelectrolytes. If the logarithm of the solvent activity coefficient (γ1) is expressed as a power series in the mole fraction of the solute (x2), lnγ1 = Bx22 + Cx23 + ···, then the coefficients B and C can be determined analytically from the experimental measurements. Values of B were obtained for 52 aqueous mixtures; values of C were obtained for 39 of these mixtures. The solutes considered include aliphatic alcohols, amines, amides, ketones, fatty acids, amino acids, and sugars. In some cases, experimental data were available from which the temperature dependence of the quantities B and C could also be determined. The effect of solute size on the coefficients B and C was investigated using the lattice theories of Flory, Huggins, and Gu...

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Citations
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Enthalpy of dilution of aqueous mixtures of amides, sugars, urea, ethylene glycol, and pentaerythritol at 25°C: Enthalpy of interaction of the hydrocarbon, amide, and hydroxyl functional groups in dilute aqueous solutions

TL;DR: In this article, the enthalpy of dilution of all one-and two-solute aqueous mixtures of a series of compounds were measured from about 0.2 to 2.0 mole-kg−1 at 25°C.
Journal ArticleDOI

Studies of hydrophobic bonding in aqueous alcohols: Enthalpy measurements and model calculations

TL;DR: In this article, the core repulsion and solvation-layer overlap terms in the potential for the interaction of two solute molecules are analyzed in terms of amodel which specifies the solvation layer overlap terms.
Journal ArticleDOI

Enthalpies of the urea-tert-butanol-water system at 25°C

TL;DR: In this article, the enthalpies of solution of urea (U) in water (W)-tert-butanol (TBA) mixtures and of TBA in W-U mixtures were measured with a solution calorimeter and a flow microcalorimeter.
Journal ArticleDOI

Solute–solute interactions in water. II. An analysis through the Kirkwood–Buff integrals for 14 organic solutes

TL;DR: In this paper, the Kirkwood-Buff integrals Gij defined by Gij =∫∞0 [gij(r) −1] 4πr2dr=f(a,V,K), (i=1,2; j= 1,2), have been calculated in the whole concentration range.
References
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Journal ArticleDOI

Application of the Methods of Molecular Distribution to Solutions of Large Molecules

TL;DR: In this article, the thermodynamic potentials of the solvent in solutions of ordinary organic molecules are extended to solutions of large molecules by methods using continuous molecular distribution functions, and a general expression is developed for A2 for flexible chain molecules in terms of the interactions of the segments of the chains.
Journal ArticleDOI

The Structure of the Carboxyl Group: I. The Investigation of Formic Acid by the Diffraction of Electrons.

TL;DR: The investigation reported in this paper has verified the resonating structure by the determination of interatomic distances in formic acid, and shown that in the dimer of formic Acid the molecules are joined together by hydrogen bonds between the oxygen atoms of the carboxyl groups.
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