Mean activity coefficients of NaCl in glucose–water and sucrose–water mixtures at 298.15 K
- 1 January 1994
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions
- Vol. 90 (21) , 3281-3285
- https://doi.org/10.1039/ft9949003281
Abstract
The mean activity coefficients of NaCl in aqueous solutions of 10, 20 and 30 mass% sugar (glucose and sucrose) have been determined at 298.15 K from emf measurements in the molality range 0.006–2.0 mol kg–1. The results have been analysed by using the Debye–Hückel extended equation and the Pitzer equation. There is good agreement between the results obtained from these theoretical models. It has been shown that two parameters of the Pitzer equation, β(0) and β(1), increase linearly with the increasing reciprocal of the relative permittivity for the mixed solvents as well as the mole fraction of sugar in the mixed solvents. A similar linear relationship was also found for the ion-interaction parameter, C, of the Debye–Hückel extended equation.Keywords
This publication has 24 references indexed in Scilit:
- Activity coefficients and standard Gibbs free energies of transfer of NaCl and KCl from water to aqueous solution of 2-butoxyethanol by EMF studiesCanadian Journal of Chemistry, 1993
- The use of glass ion-selective electrodes for thermodynamic studies on electrolyte solutions 1:1 in water-organic solvent systems: Studies in the water-THF systemThermochimica Acta, 1990
- Thermodynamic studies of NaCl solutions in water + methanol mixtures by means of a galvanic cell containing a glass sodium electrodeJournal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1990
- Isopiestic determination of the osmotic and activity coefficients of aqueous Lu2(SO4)3 at 25 CJournal of Solution Chemistry, 1990
- Thermodynamics of the hydrogen-silver chloride cell in ethanol-water mixtures from −10 to +40°CJournal of Solution Chemistry, 1988
- Standard Gibbs free energies of transfer of NaCl and KCl from water to mixtures of the four isomers of butyl alcohol with water. The use of ion-selective electrodes to study the thermodynamics of solutionsJournal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1987
- Thermodynamic studies of sodium bromide in 2-propanol—water mixtures (10, 30 and 50 wt.%) from electromotive force measurementsElectrochimica Acta, 1983
- Thermodynamics of hydrogen chloride in propylene glycol-water mixtures from electromotive force measurementsJournal of Chemical & Engineering Data, 1983
- Free energies of transfer of alkali metal fluorides from water to hydrogen peroxide + water and methanol + water mixtures using ion-selective electrodesJournal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1975
- Physical Chemistry of Organic Solvent SystemsPublished by Springer Nature ,1973