Journal of Solution Chemistry
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Micellization of Alkyltriphenylphosphonium Bromides in Ethylene Glycol and Diethylene Glycol + Water Mixtures: Thermodynamic and Kinetic Investigation
Journal of Solution Chemistry - Tập 37 - Trang 59-72 - 2007
The thermodynamics of micellization and other micellar properties of alkyl- (C10-, C12-, C14- and C16-) triphenylphosphonium bromides in water + ethylene glycol (EG) (0 to 30% v/v) mixtures over a temperature range of 298 to 318 K and cetyltriphenylphosphonium bromide in water + diethylene glycol (DEG) mixtures (0 to 30% v/v) at 298 K have been studied conductometrically. In all cases, an increas......
Analysis of the thermodynamic characteristics of solvation of individual ions in ethanol using model concepts
Journal of Solution Chemistry - Tập 21 - Trang 533-543 - 1992
Solvation of individual ions in ethanol are given by the sum of various contributions: electrostatic, cavity formation, interactions of ions with the solvent, and structural rearrangement of the solvent itself. An analysis of the influence of all these contributions on the temperature dependence of solvation of ions is presented.
Liquid–Liquid Equilibria of Linalool + Ethanol + Water, Water + Ethanol + Limonene, and Limonene + Linalool + Water Systems
Journal of Solution Chemistry - Tập 33 Số 5 - Trang 561-569 - 2004
Solvent effect on pyridine derivatives. Molecular iodine donor-acceptor equilibria. The isoquinoline-I2-organic solvent system and the 2,4-lutidine-I2-organic solvent system
Journal of Solution Chemistry - Tập 8 - Trang 105-112 - 1979
The absorption spectra of isoquinoline-iodine or 2,4-lutidine-iodine solutions in organic solventsn-hexane,n-heptane, cyclohexane, carbon tetrachloride, benzene, toluene, chlorobenzene, ando-dichlorobenzene have been measured and interpreted in terms of the D+I2=DI2 equilibrium, where D is isoquinoline or 2,4-lutidine. Values ofK (288–320°K), ΔHo, and ΔSo for the reaction were calculated. A correl......
Solute-solvent effects in the acidic dissociation of the ampholyte N-tris(hydroxymethyl)methylglycine (“tricine”) in 50 mass % methanol-water solvent
Journal of Solution Chemistry - Tập 3 - Trang 905-916 - 1974
The pK values for the two acidic dissociation steps of the ampholyte N-tris-(hydroxymethyl)methylglycine (“tricine”) in 50 mass % methanol-water solvent have been determined by emf measurements of cells of the type Pt|H2(g, 1 atm), tricine buffer, Br−, AgBr|Ag over the range 5 to 50°C (pK
1)and 5 to 60°C (pK
2).The standard thermodynamic quantities ΔHo, ΔSo, and ΔC
p
......
The Effect of Different Aqueous Ionic Media on the Acid-Base Properties of Some Open Chain Polyamines
Journal of Solution Chemistry - Tập 37 - Trang 183-201 - 2007
Acid-base properties of some open-chain polyamines (ethylenediamine, diethylenetriamine, triethylenetetramine, spermine, tetraethylenepentamine and pentaethylenehexamine) were studied at different ionic strengths in different aqueous ionic media at 25 °C. Measured were: (i) the protonation constants of triethylenetetramine, tetraethylenepentamine and pentaethylenehexamine from potentiometric meas......
Employing Abraham and Hansen Parameters for Solubility Prediction of Ketoconazole in Binary Solvents at Various Temperatures
Journal of Solution Chemistry - Tập 51 - Trang 1000-1019 - 2021
The Jouyban–Acree model is reported to be the most accurate mathematical model for predicting drug solubility in the mixed solvents at various temperatures. In this study, the solubility of ketoconazole is predicted using the Jouyban–Acree based general models in some previously reported co-solvency systems. For this purpose, parameters of the Hansen solubility and the Abraham solvation parameters......
An NMR study of thallium nitrate ion association in liquid ammonia
Journal of Solution Chemistry - Tập 9 - Trang 197-207 - 1980
205Tl and1H magnetic resonance frequencies have been determined for liquid ammonia solutions of TlClO4 and TlNO3 as a function of electrolyte concentration (5×10−4 to 9.8 M) and temperature. The dependence of the resonance frequency on concentration suggests the presence of free, fully solvated thallium ions, ion pairs, and higher-order ion aggregates. Analysis of lowconcentration205Tl data betwe......
Molecular association ofn-alcohols in nonpolar solvents. excess volumes and viscosities ofn-pentanol+n-octane mixtures at 0, 5, 25, 35 and 45°C
Journal of Solution Chemistry - Tập 19 - Trang 711-720 - 1990
Densities and viscosities of n-pentanol +n-octane mixtures in the temperature range 0 to 45°C are reported. The data are discussed in terms of molar excess volumes, molar excess fluidities and molar excess activation energies of viscous flow in order to obtain structural information of the mixtures. It is shown that the structural modifications of n-pentanol and n-octane upon mixing, significantly......
Association and Solvation of Silver Nitrate and Perchlorate in Aqueous Ethanol
Journal of Solution Chemistry - Tập 45 - Trang 286-298 - 2016
The molar conductivities of silver nitrate and perchlorate solutions in aqueous ethanol (X
EtOH = 0.5–0.9 and X
EtOH = 0.9, respectively) were measured. Using the conductometry data, the values of dissociation constants and limiting conductivities (λ
0) of these electrolytes were calculated. The results were discussed by emplo......
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