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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A novel in-situ strategy for enantiomeric discrimination and selective identification of multicomponent carboxylic acids in foods.
TL;DR: In this paper , a new strategy involving the use of the highly selective chiral derivatizing agent (R)-2-amino-1,1, 1,1-trifluoropropane ((R)-TFPA) for the enantiomeric discrimination and selective identification of carboxylic acids in mixtures, even structurally similar drugs.
Journal ArticleDOI
The thermodynamic behaviour of solutions. Is a generalised approach feasible
Journal ArticleDOI
Analysis of Apparent Viscosity of Aqueous Macromolecule Solutions Containing Sucrose
Yukinori Sato,Osato Miyawaki +1 more
TL;DR: In this paper, the apparent viscosity (H) of aqueous macromolecule solutions with and without sucrose was measured, as well as the apparent reduced viscosities (ηred), the intrinsic and apparent specific visco-solutions on water activity (Aw), and the activation energy of apparent viso-solution activation energy (Ea) were analyzed.
Journal ArticleDOI
Enthalpy Characteristics of N -Methylglycine Dissolution in Some Aqueous–Organic Mixtures at 298.15 K
TL;DR: In this article, the enthalpies of N-methylglycine dissolution in aqueous solutions of acetonitrile (AN), 1,4-dioxane (DO), acetone (AC), and dimethylsulfoxide (DMSO) at a mole fraction of an organic solvent x2 of 0'0.25 and T = 298.15 K were calculated.
Journal ArticleDOI
Solute-solute interaction enthalpies in solutions of copper(II) chloride in organic solvents having nitrogen donor atoms
TL;DR: Singh et al. as mentioned in this paper studied the dissolution behavior of anhydrous cupric chloride (i) in solvents having a nitrogen donor atom (S) such as aniline o -toluidine pyridine formamide and NN -dimethyl-formamide.
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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