Journal of Solution Chemistry

article

Partial Molar Volumes of Hydrophobic Compounds—Insight into the Solvation Shell? Part I

W. Zielenkiewicz, J. Poznański

Journal of Solution Chemistry > 1998 > 27 > 3 > 245-254

A simple model for the interaction of the solute with the solvent is presented. The relation between the molecular volume, partial molar volume, and the volume of the solvation shell of the compound studied is expressed by the α parameter, defined as the relative density of the solvation shell. The values of α are calculated for many organic compounds in aqueous solutions. It is stated that in a given...

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Thermochemistry of Aqueous Solutions of Alkylated Nucleic Acid Bases. X. Enthalpies of Hydration of Cytosine and some Methylated, Hydroxy and Methoxy Derivatives of Cytosine

A. Zielenkiewicz, M. Wszelaka-Rylik, J. Poznański, W. Zielenkiewicz

Journal of Solution Chemistry > 1998 > 27 > 3 > 235-243

Enthalpies of solution in water, vapor pressures, and enthalpies of sublimation were determined for cytosine and a number of crystalline derivatives of cytosine: 1-methylcytosine, 1-methyl-N ⁴-hydroxycytosine, 1,5-methyl-N ⁴-methoxycytosine, 1,N ⁴,N ⁴-trimethylcytosine, 1,5,N ⁴-trimethylcytosine, 1,5-dimethyl-N ⁴-methoxycytosine, and l,N ⁴-dimethyl-5-ethylcytosine. Enthalpies of hydration were calculated...

article

Cadmium Malonate Complexation in Aqueous Sodium Trifluoromethanesulfonate Media to 75°C; Including Dissociation Quotients of Malonic Acid

Moira K. Ridley, Donald A. Palmer, David J. Wesolowski, Richard M. Kettler

Journal of Solution Chemistry > 1998 > 27 > 3 > 195-216

The molal formation quotients for cadmium–malonate complexes were measured potentiometrically from 5 to 75°C, at ionic strengths of 0.1, 0.3, 0.6 and 1.0 molal in aqueous sodium trifluoromethanesulfonate (NaTr) media. In addition, the stepwise dissociation quotients for malonic acid were measured in the same medium from 5 to 100°C, at ionic strengths of 0.1, 0.3, 0.6, and 1.0 molal by the same method...

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Solubility of Mannitol in Aqueous Sodium Chloride by the Isopiestic Method

Yu-Feng Hu

Journal of Solution Chemistry > 1998 > 27 > 3 > 255-260

Using a method for determination of solubilities of nonelectrolytes in electrolyte solutions based on isopiestic equilibration and precise chemical analyses, we have measured and report the solubilities of mannitol in sodium chloride solutions. Our results are, in general, in good agreement with the data of Kelly et al. The method is described and its advantages discussed.

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Rates of Dissociative Ionic Reactions in Aqueous Mixtures Correlated with Opposing Gibbs Energies of Transfer of Single Ions: Solvolysis of Chloropentacyanocobaltate(III) Anions in Water + Ethanol and Water + Urea

Kamal H. Halawani, Cecil F. Wells

Journal of Solution Chemistry > 1998 > 27 > 3 > 273-284

The kinetics of the solvolysis of Co(CN)₅Cl³⁻ have been investigated in water with an added structure former, ethanol, and with added urea, which has only a weak effect on the solvent structure. As this solvolysis involves a rate-determining dissociative step corresponding closely to a 100%; separation, Co³⁺ ⋯ Cl^-, in the transition state, a Gibbs energy cycle relating Gibbs energies of activation...

article

Determination of Diffusion Coefficients for Binary Nonelectrolyte Mixtures. A Free-Volume Predictive Approach

X. N. Yang

Journal of Solution Chemistry > 1998 > 27 > 3 > 261-272

A diaphragm cell has been used to measure mutual diffusion coefficients at 25°C for four binary nonelectrolyte mixtures: ethylbenzene + n-hexane, carbon tetrachloride + ethylbenzene, cyclohexane + p-xylene, and 1,2-dichloroethane + cyclohexane. A free-volume predictive approach for binary mutual diffusion coefficients was developed and tested. Only infinite dilution diffusion coefficients, some readily...

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A Viscometric and Conductometric Investigation of the Micellar and Solution Properties of Two-Headed Surfactant Systems, the Disodium 4-Alkyl-3-sulfonatosuccinates

Paul Wiseman, Catherine A. Kennedy, D. Gerrard Marangoni, Ramamurthy Palepu

Journal of Solution Chemistry > 1998 > 27 > 3 > 217-233

A family of two-headed surfactants, the disodium 4-alkyl-3-sulfonatosuccinates, has been prepared by reacting maleic anhydride with the appropriate chain-length alcohol and subsequent addition of sodium bisulfite to the corresponding monoester. The properties of the micelles formed by these compounds in aqueous solution (aggregation numbers, degrees of counterion binding, and the cmc values) have...

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Journal of Solution Chemistry

Partial Molar Volumes of Hydrophobic Compounds—Insight into the Solvation Shell? Part I

Thermochemistry of Aqueous Solutions of Alkylated Nucleic Acid Bases. X. Enthalpies of Hydration of Cytosine and some Methylated, Hydroxy and Methoxy Derivatives of Cytosine

Cadmium Malonate Complexation in Aqueous Sodium Trifluoromethanesulfonate Media to 75°C; Including Dissociation Quotients of Malonic Acid

Solubility of Mannitol in Aqueous Sodium Chloride by the Isopiestic Method

Rates of Dissociative Ionic Reactions in Aqueous Mixtures Correlated with Opposing Gibbs Energies of Transfer of Single Ions: Solvolysis of Chloropentacyanocobaltate(III) Anions in Water + Ethanol and Water + Urea

Determination of Diffusion Coefficients for Binary Nonelectrolyte Mixtures. A Free-Volume Predictive Approach

A Viscometric and Conductometric Investigation of the Micellar and Solution Properties of Two-Headed Surfactant Systems, the Disodium 4-Alkyl-3-sulfonatosuccinates

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INFONA - science communication portal

Journal of Solution Chemistry

Partial Molar Volumes of Hydrophobic Compounds—Insight into the Solvation Shell? Part I

Thermochemistry of Aqueous Solutions of Alkylated Nucleic Acid Bases. X. Enthalpies of Hydration of Cytosine and some Methylated, Hydroxy and Methoxy Derivatives of Cytosine

Cadmium Malonate Complexation in Aqueous Sodium Trifluoromethanesulfonate Media to 75°C; Including Dissociation Quotients of Malonic Acid

Solubility of Mannitol in Aqueous Sodium Chloride by the Isopiestic Method

Rates of Dissociative Ionic Reactions in Aqueous Mixtures Correlated with Opposing Gibbs Energies of Transfer of Single Ions: Solvolysis of Chloropentacyanocobaltate(III) Anions in Water + Ethanol and Water + Urea

Determination of Diffusion Coefficients for Binary Nonelectrolyte Mixtures. A Free-Volume Predictive Approach

A Viscometric and Conductometric Investigation of the Micellar and Solution Properties of Two-Headed Surfactant Systems, the Disodium 4-Alkyl-3-sulfonatosuccinates

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