Scaled-particle theory and salting constant of tetrahydrofuran in various aqueous electrolyte solutions at 298.15 K

1979 ◽  
Vol 75 (0) ◽  
pp. 1837 ◽  
Author(s):  
Michel Fromon ◽  
Claude Treiner
Keyword(s):  
Aqueous Electrolyte ◽  
Electrolyte Solutions ◽  
Scaled Particle Theory ◽  
Particle Theory ◽  
Aqueous Electrolyte Solutions

Some regularities in the behavior of salting constants for polar molecules in aqueous electrolyte solutions

1981 ◽  
Vol 59 (16) ◽  
pp. 2518-2529 ◽  
Author(s):  
Claude Treiner
Keyword(s):  
Dipole Moment ◽  
Organic Molecules ◽  
Aqueous Electrolyte ◽  
Preferential Solvation ◽  
Electrolyte Solutions ◽  
Molecular Surface ◽  
Inorganic Salts ◽  
Polar Molecules ◽  
Scaled Particle Theory ◽  
Aqueous Electrolyte Solutions

The salting effect of polar molecules in aqueous electrolyte solutions has been examined in the case of 22 solute molecules. It is observed that the salting constants of polar and nonpolar molecules of the same size in a given salt solution are close to each other and are generally greater than a critical diameter of the solute molecules. Using the available data from the literature, the salting constants ks of neutral polar molecules by univalent cation electrolytes has been classified in three groups: (1) Organic molecules and inorganic salts: for a given electrolyte ks is a monotonous function of the solute size and the nonelectrolyte dipole moment plays no role. (2) Organic molecules and organic salts: again a smooth variation of ks with size is observed whatever the polar mono-functional molecule. (3) Inorganic molecules and inorganic salts: a correlation is exhibited between ks and the solute dipole moment. These observations may be interpreted by assuming that both ends of a dipole are to be available to solute + solvent interactions for a dipole effect to be observed.Furthermore it is shown that in case 1, the scaled-particle theory with incorporation of a preferential solvation phenomenon may be useful for predicting salting out effects of polar molecules in inorganic salt solutions. In case 2 an approach based on microscopic surface tension and molecular surface area is also considered.

Promoting Nitrogen Electroreduction to Ammonia with Bismuth Nanocrystals and Potassium Cations in Water

2020 ◽  
Author(s):  
Jaecheol Choi ◽  
Hoang-Long Du ◽  
Manjunath Chatti ◽  
Bryan H. R. Suryanto ◽  
Alexandr Simonov ◽  
...  
Keyword(s):  
Electrocatalytic Activity ◽  
Aqueous Electrolyte ◽  
Electrolyte Solutions ◽  
Reduction Reaction ◽  
Nitrogen Reduction ◽  
Aqueous Electrolyte Solutions

We demonstrate that bismuth exhibits no measurable electrocatalytic activity for the nitrogen reduction reaction to ammonia in aqueous electrolyte solutions, contrary to several recent reports on the highly impressive rates of Bi-catalysed electrosynthesis of NH<sub>3</sub> from N<sub>2</sub>.

scholarly journals Macroscopic conductivity of aqueous electrolyte solutions scales with ultrafast microscopic ion motions

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Vasileios Balos ◽  
Sho Imoto ◽  
Roland R. Netz ◽  
Mischa Bonn ◽  
Douwe Jan Bonthuis ◽  
...  
Keyword(s):  
Aqueous Electrolyte ◽  
Electrolyte Solutions ◽  
Aqueous Electrolyte Solutions

NMR Studies of Aqueous Electrolyte Solutions. IV. Hydration Numbers of Strong Electrolytes Determined from Temperature Effects on Proton Shifts

1971 ◽  
Vol 54 (1) ◽  
pp. 178-181 ◽  
Author(s):  
Brother Ferdinand J. Vogrin ◽  
Paul S. Knapp ◽  
William L. Flint ◽  
Arthur Anton ◽  
Gerald Highberger ◽  
...  
Keyword(s):  
Temperature Effects ◽  
Aqueous Electrolyte ◽  
Electrolyte Solutions ◽  
Hydration Numbers ◽  
Nmr Studies ◽  
Aqueous Electrolyte Solutions ◽  
Strong Electrolytes
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