Results 261 to 270 of about 222,779 (316)
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Collection of Czechoslovak Chemical Communications, 1979
The applicability of the regular solution model for the description of the liquid-liquid equilibrium in ternary systems is discussed in the work and the conditions are established for the formation of two and three liquid phases. In the analysis it was found that certain forms of binodal curves cannot be obtained using only binary constants.
Josef P. Novák +3 more
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The applicability of the regular solution model for the description of the liquid-liquid equilibrium in ternary systems is discussed in the work and the conditions are established for the formation of two and three liquid phases. In the analysis it was found that certain forms of binodal curves cannot be obtained using only binary constants.
Josef P. Novák +3 more
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The Origin of the LCST on the Liquid–Liquid Equilibrium of Thiophene with Ionic Liquids
The Journal of Physical Chemistry B, 2012Mixtures of thiophene with two ionic liquids, namely, [C(4)C(1)im][SCN] and [C(4)C(1)im][NTf(2)], were chosen as prototypes of systems presenting lower critical solution temperature (LCST) and upper critical solution temperature (UCST) behavior, respectively. This distinct behavior is due to different interactions between the constituting species which
Batista, Marta L. S. +5 more
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Thermochimica Acta, 1989
Abstract The UNIQUAC model is modified to include ternary parameters. Correction terms reduce to zero if a ternary system degenerates to a binary system. The proposed model greatly improves the correlation of ternary liquid-liquid equilibria for many systems.
Isamu Nagata, Yukimasa Usui
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Abstract The UNIQUAC model is modified to include ternary parameters. Correction terms reduce to zero if a ternary system degenerates to a binary system. The proposed model greatly improves the correlation of ternary liquid-liquid equilibria for many systems.
Isamu Nagata, Yukimasa Usui
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Liquid–liquid equilibrium in the lithium–lanthanum system
Thermochimica Acta, 2016Abstract The boundaries of the liquid–liquid immiscibility region on the phase diagram of the Li–La system have been determined by the gamma-ray attenuation technique. At the monotectic temperature (1118 K), the miscibility gap ranges from 0.25 to 92.9 at.% La.
Rashid A. Khairulin +3 more
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Ternary liquid-liquid equilibrium by infrared spectrometry
Journal of Chemical & Engineering Data, 1970Ternary liquid-liquid equilibrium studies of acetonitrile-water-diammonium phosphate and acetonitrile-water-diammonium citrate at 25' C were made, using a modification of the cloud point technique. Binodal data were obtained without opening the sample vials once the salt had been added.
Stephen L. Cannon +2 more
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Effect of polydispersity on liquid–liquid phase equilibrium
Journal of Polymer Science Part A-2: Polymer Physics, 1967AbstractThe effect of polydispersity on liquid–liquid phase equilibrium in systems containing polymer, solvent, and nonsolvent is investigated numerically in the Flory‐Huggins approximation for several special cases. The resulting phase diagrams indicate that, except in the immediate vicinity of the critical region, the degree of swelling of a polymer ...
B. M. Baysal, W. H. Stockmayer
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Liquid‐liquid equilibrium in systems containing nicotine
Journal of Applied Chemistry, 1957AbstractLiquid‐liquid equilibria have been investigated in the nicotine‐sulphuric acid‐water and nicotine‐sulphuric acid‐carbon tetrachloride systems at 25°. The latter system exhibits two phases for all concentrations of the components with the production of a semi‐solid phase of nicotine bisulphate which is insoluble in nicotine and carbon ...
R. T. Fowler, R. A. S. Noble
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Liquid‐liquid equilibrium studies for separation of aromatics
Journal of Applied Chemistry and Biotechnology, 1976AbstractLiquid‐liquid equilibrium studies have been carried out on 11 solvents using two binary hydrocarbon mixtures for selective extraction of aromatics. The solvents used have been compared on the basis of selectivity, solvent capacity and tie line correlation curves. Tie line data have been determined for 18 systems.
Bachan S. Rawat, Indar B. Gulati
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Problems and limitations in the calculation of liquid-liquid equilibrium
Fluid Phase Equilibria, 2023Maksymilian Sapkowski, Tadeusz Hofman
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Liquid—liquid equilibrium in methanol + gasoline blends
Fluid Phase Equilibria, 1986Abstract An investigation has been carried out to study the limited miscibility of methanol and gasoline blends over the temperature range −20 to 20°C. Two liquid phases in equilibrium were analysed by mass spectrometric methods and their composition reported, in addition to the methanol content, in terms of six principal classes of hydrocarbons ...
Vlastimil Růžička +2 more
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