Journal ArticleDOI
Solute‐Solute Interactions in Aqueous Solutions
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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
Enthalpy-related parameters of interaction of simplest α-amino acids with the pharmaceutical mebicar (N-tetramethylglycoluril) in water at 298.15 K
TL;DR: The enthalpies of dilution of mixed aqueous solutions of glycine (Gly, x) or l -alanine (Ala, x), a well-known pharmaceutical, were measured calorimetrically at 298.15 K.
Journal ArticleDOI
Invoking pairwise interactions in water-promoted Diels-Alder reactions by using ionic liquids as cosolvents.
Arpan Manna,Anil Kumar +1 more
TL;DR: Ionic liquids are introduced as cosolvents in the aqueous Diels-Alder reaction between anthracene-9-carbinol and N-ethylmaleimide to enhance the solubility window of water.
Journal ArticleDOI
Thermodynamic Analysis of Homologous α-Amino Acids in Aqueous Potassium Fluoride Solutions at Different Temperatures
K. Rajagopal,S. Edwin Gladson +1 more
TL;DR: In this paper, partial molal volumes (V_{\phi} ^{0}), transfer volumes, and transfer compressibilities for aqueous potassium fluoride solutions (0.1 to 0.5 mol⋅kg−1) have been measured.
Journal ArticleDOI
Interactions in aqueous solutions of urea and alcohols. Excess enthalpies at 25°C
TL;DR: In this paper, the effects of a chaotropic agent, such as urea, on the cospheres of mainly hydrophobic such as alcohols are discussed in terms of the effects.
Journal ArticleDOI
Densities and Speeds of Sound for Sucrose in Aqueous Solutions of Ammonium Phosphate Salts at Different Temperatures through Density and Speed of Sound Measurements
TL;DR: In this paper, volumetric and acoustic studies of sucrose with ammonium phosphate salts, namely, ammonium dihydrogen phosphate (ADP) and diammonium hydrogen phosphate (DAP), have been carried out using an oscilla.
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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