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
Sancheeta Kolay, Kallol K. Ghosh, Amy MacDonald, Jonathan Moulins, Rama M. Palepu
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...... hiện toàn bộ
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
I. Uruska, H. Karaczewska
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...... hiện toàn bộ
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
Roger G. Bates, Rabindra N. Roy, R. A. Robinson
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 ...... hiện toàn bộ
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
Clemente Bretti, Francesco Crea, Ottavia Giuffrè, Silvio Sammartano
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...... hiện toàn bộ
An NMR study of thallium nitrate ion association in liquid ammonia
Journal of Solution Chemistry - Tập 9 - Trang 197-207 - 1980
J. F. Hinton, K. R. Metz
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...... hiện toàn bộ
Thermodynamic Model of Inorganic Arsenic Species in Aqueous Solutions. Potentiometric Study of the Hydrolytic Equilibrium of Arsenious Acid
Journal of Solution Chemistry - Tập 32 - Trang 253-264 - 2003
Juan C. Raposo, Jon Sanz, Olatz Zuloaga, María A. Olazabal, Juan M. Madariaga
A potentiometric study of the hydrolysis of arsenious acid was carried out to define the thermodynamic model of the inorganic arsenic species in aqueous solutions. The protonation equilibrium of arsenious acid was determined at 25°C. The variation of the stoichiometric formation constant with the ionic strength was also studied up to ionic strength 3.0 mol-dm−3 in aqueous NaClO4, NaCl, and KCl. Th...... hiện toàn bộ
Physical chemistry of the zinc-bromine battery: I. Activity coefficients of aqueous zinc bromide
Journal of Solution Chemistry - - 1981
H. Frank Gibbard
Volumetric Properties of Acetonitrile with 1,2-Alkanediols (C2–C6) at 20°C
Journal of Solution Chemistry - Tập 30 - Trang 807-814 - 2001
H. Iloukhani, J. B. Parsa, M. Soltanieh
Dilatometric measurements of excess molar volumes, V E and excess partial molar volumes, $$\overline V _{\text{i}}^{\text{E}}$$ have been made for binary mixtures of acetonitrile with 1,2-ethanediol, 1,2-propanediol, 1,2-butanediol, 1,2-pentanediol, and 1,2-hexanediol at 20°C over the entire compositio...... hiện toàn bộ
NMR and Excess Volumes Studies in DMF–Alcohol Mixtures
Journal of Solution Chemistry - Tập 31 - Trang 109-117 - 2002
Congmin Wang, Haoran Li, Longhua Zhu, Shijun Han
Chemical shifts of the alcohol and DMF protons in DMF–alcohol mixtures with the mole fraction of alcohol are reported in order to study the hydrogen bond interaction present in the mixtures. The densities of DMF–methanol mixture at 22°C are also measured. Excess volumes and excess chemical shifts are correlated by the Redlich–Kister equation. The relation between excess volumes and excess chemical...... hiện toàn bộ
Partial molar isentropic compressibilities and volumes of selected electrolytes and nonelectrolytes in dimethylsulfoxide
Journal of Solution Chemistry - Tập 16 - Trang 753-765 - 1987
James I. Lankford, Cecil M. Criss
Precision densities and sound velocities for solutions of selected univalent electrolytes and nonelectrolytes in DMSO have been measured at 25°C, and apparent molar isentropic compressibilities and volumes evaluated. The data were extrapolated to infinite dilution to obtain standard state partial molar quantities, K s,2 ° , and V ...... hiện toàn bộ
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