30 Result(s)
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Jacques E. Desnoyers
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Article
Application of the Bjerrum Association Model to Electrolyte Solutions. IV. Apparent Molar Heat Capacities and Compressibilities in Water and Aprotic Solvents
The Bjerrum association model, which has already been applied successfully to volumes and enthalpies of dilution of electrolyte solutions, has now been extended to apparent molar heat capacities and compressib...
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Article
Application of the Bjerrum Association Model to Electrolyte Solutions. III. Temperature and Pressure Dependencies of Association Constants
The Bjerrum association model, developed in 1926, is now incorporated in many conductance theories of electrolyte systems to extract Λ0 and K A from experimental data. The Bjerrum concept is simply a convenient w...
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Article
Application of the Bjerrum Association Model to Electrolyte Solutions. II. Enthalpies of Dilution in Water and Nonaqueous Solvents
The association theory based on the Bjerrum model, which had been developed for the treatment of apparent and partial molar volumes of electrolyte solutions, is extended to apparent molar relative enthalpies L 2,...
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Article
Apparent Molar Volume, Heat Capacity, and Conductance of Lithium Bis(trifluoromethylsulfone)imide in Glymes and Other Aprotic Solvents
Lithium bis(trifluoromethylsulfone)imide (LiTFSI) is a promising electrolyte for high-energy lithium batteries due to its high solubility in most solvents and electrochemical stability. To characterize this elect...
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Article
Treatment of excess thermodynamic quantities for liquid mixtures
Thermodynamic data on mixtures of liquids are usually expressed as excess quantitiesY EX and analyzed with the Redlich-Kister equation. This approach can in some cases be misleading and hide stron...
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Article
Dielectric constants of acetonitrile, γ-butyrolactone, propylene carbonate, and 1,2-dimethoxyethane as a function of pressure and temperature
The dielectric constants ∈ of 1,2-dimethoxyethane, acetonitrile, γ-butyrolactone, and propylene carbonate were determined from capacitance measurements extrapolated to infinite frequency; ln ∈ are reported as ...
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Article
Application of the Bjerrum association model to volumes of electrolytes in water and acetonitrile
The Bjerrum association model has been extended to partial and apparent molar volumes. It was tested for electrolytes in water and in acetonitrile using literature or new (n-propylammonium bromide) data to cover ...
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Article
Volume and heat capacity of model non-aqueous self-assembly systems
Blends of immiscible polymers are often stabilized by block copolymers which can form non-aqueous micelles and microemulsions in the liquid polymers. The phase diagrans, apparent volumes and apparent heat capa...
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Article
Model system for concentrated electrolyte solutions: Thermodynamic and transport properties of ethylammonium nitrate in acetonitrile and in water
Ethylammonium nitrate (ETAN), a low melting fused salt which is completely miscile in water and in many non-aqueous solvents, was used as a model system for the study of concentrated non-aqueous electrolyte so...
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Article
Thermodynamic properties of aqueous organic mixtures near the critical demixing: Cases of 2,6-dimethylpyridine and of 2-isobutoxyethanol
Phase diagrams, volumes and heat capacities of aqueous mixtures of 2,6-dimethylpyridine (2,6-L) and 2-isobutoxyethanol (iBE) and activities of 2,6-L in aqueous mixtures were measured in the monophasic region n...
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Article
Correlation of the volumes and heat capacities of solutions with their solid-liquid phase diagrams
Liquid systems which have strong non-idealities, as seen from their thermodynamic properties, often show evidence of these interactions in the solid-liquid phase diagrams. This suggests that some of the struct...
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Chapter
Thermodynamic Properties of Micellar Systems
Thermodynamic properties of micellar systems can now be measured with reasonably good precision over a large concentration range, and the data can be interpreted through mathematical models or by comparison wi...
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Article
Application of a chemical equilibrium model to thermodynamic functions of transfer of alcohols from water to aqueous surfactants
In ternary aqueous solutions, hydrophobic solutes such as alcohols tend to aggregate with surfactants to form mixed micelles. These systems can be studied by meas of the functions of transfer of hydrophobic so...
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Article
Chemical equilibrium model for the thermodynamic properties of mixed aqueous micellar systems: Application to thermodynamic functions of transfer
Mixed micelles can be formed in water between various pairs of hydrophobic solutes such as surfactants, alcohols and hydrocarbons. These systems can often be studied through the thermodynamic functions of tran...
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Article
Volumes and heat capacities of some watersurfactant-alcohol ternary systems
The densities and volumetric heat capacities of urea and alcohols were measured in aqueous solutions of octylammonium bromide (OABr) and of OABr in aqueous urea and alcohol solutions. The alcohols studies were...
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Article
Isentropic compressibilities of alcohol-water mixtures at 25°C
The sound velocities of aqueous solutions of methanol, ethanol, 2-propanol, tertbutanol and 2-butoxyethanol (BE) were measured over the whole mole fraction range at 25°C. The isentropic apparent and partial mo...
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Article
Microheterogeneity in aqueous-organic mixtures: thermodynamic transfer functions for benzene from water to 2-propanol aqueous systems at 25°C
The solubilities, enthalpies of solution, heat capacities, densities and ultrasonic velocities of benzene in 2-propanol-water mixtures were measured at 25°C. The apparent molal volumes, heat capacities and ise...
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Article
Freezing points and enthalpies of dilute aqueous solutions of tetrahydropyran, 1,3-dioxane, 1,4-dioxane, and 1,3,5-trioxane. Free energies and enthalpies of solute-solute interactions
The enthalpies of dilute aqueous solutions of tetrahydropyran, 1,3-dioxane, 1,4-dioxane, 1,2,5-trioxane, and an equimolal mixture of tetrahydropyran and 1,3,5-trioxane were measured at 25°C and at molalities f...
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Article
Microheterogeneity in aqueous-organic solutions: Heat capacities, volumes and expansibilities of some alcohols, aminoalcohol and tertiary amines in water
The heat capacities per unit volume and the densities of aqueous solutions of 2-propanol, neopentanol, tert-amylalcohol, 2-amino-2-methylpropanol, triethylamine and diethylmethylamine were measured, in many ca...
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Article
Enthalpies of reaction and reaction rates by flow microcalorimetry: Ester hydrolysis in basic medium
The conditions under which the Picker flow microcalorimeter can be used to measure enthalpies and rates of reactions were investigated. For this purpose, systematic studies were made of the enthalpies of neutr...
