Journal ArticleDOI
Solute‐Solute Interactions in Aqueous Solutions
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...read more
Citations
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Journal ArticleDOI
Volumetric and Viscometric Properties of Aqueous Solutions of N-Methylformamide, 1,2-Diaminopropane and 2-Methylpropane-2-ol
TL;DR: In this paper, the authors measured the density and viscosity of aqueous solutions of N-methylformamide (NMF), 1,2-diaminopropane (DAP), and 2-methylpropane-2-ol (MPL) at five equidistant temperatures ranging from 298.15 to 318.15 K.
Journal ArticleDOI
Enthalpies of solution of a series of m-alkoxy phenols in water, n-octanol and water-n-octanol mutually saturated: derivation of the thermodynamic parameters for solute transfer between these solvents.
TL;DR: The results are discussed in terms of solute‐solvent interactions in both phases and are used to assess, critically, the use of n‐octanol as lipid‐like solvent in QSAR studies.
Journal ArticleDOI
Hydrophobic self-assembling in dilute aqueous solutions of alcohols and hydrocarbons
Eli Ruckenstein,I. Shulgin +1 more
TL;DR: In this paper, a method for computing the sizes of microheterogeneities at infinite dilution (correlation volumes) is proposed, which is based on a combination between the Kirkwood-Buff theory of solution, an expression for the local concentration, ab initio quantum chemical calculations of the interaction energies and available thermodynamic data.
Journal ArticleDOI
Hydrophobic hydrophilic phenomena in biochemical processes.
TL;DR: A systematic analysis of the solvent-induced contribution to the driving force for the process of protein folding has led to two important modifications in understanding of these effects.
Journal ArticleDOI
Thermodynamic analysis of osmolyte effect on thermal stability of ribonuclease A in terms of water activity
TL;DR: Thermal unfolding of ribonuclease A (RNase) was analyzed in various osmolyte solutions of glycine, proline, sarcosine, N,N-dimethylglycine, betaine, myo-inositol, taurine, and trimethylamine-N-oxide and the Wyman-Tanford plot could be integrated to calculate the stabilization free energy of the protein (∆∆G) in the solution.
References
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Book
Molecular theory of gases and liquids
TL;DR: Molecular theory of gases and liquids as mentioned in this paper, molecular theory of gas and liquids, Molecular theory of liquid and gas, molecular theories of gases, and liquid theory of liquids, مرکز
Book ChapterDOI
Some factors in the interpretation of protein denaturation.
TL;DR: The chapter reviews that the denaturation is a process in which the spatial arrangement of the polypeptide chains within the molecule is changed from that typical of the native protein to a more disordered arrangement.
Journal ArticleDOI
Thermodynamics of High Polymer Solutions
TL;DR: In this paper, a statistical treatment of high polymer solutions has been carried out on the basis of an idealized model, originally proposed by Meyer, which is analogous to the one ordinarily assumed in the derivation of the ''ideal'' solution laws for molecules of equal size.
Journal ArticleDOI
Free Volume and Entropy in Condensed Systems III. Entropy in Binary Liquid Mixtures; Partial Molal Entropy in Dilute Solutions; Structure and Thermodynamics in Aqueous Electrolytes
Henry S. Frank,Marjorie W. Evans +1 more
TL;DR: The first and second papers in this series, which make it possible to interpret entropy data in terms of a physical picture, are applied to binary solutions, and equations are derived relating energy and volume changes when a solution is formed to the entropy change for the process as discussed by the authors.
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