The viscosity of some uni-univalent halides in aqueous solution

✍ Scribed by D.Thorburn Burns

• Publisher: Elsevier Science
• Year: 1965
• Tongue: English
• Weight: 133 KB
• Volume: 10
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(65)80010-x

✦ Synopsis

THE equation proposed by Jones and Dole1

serves to represent the experimental results for the viscosity, 7, of solutions of electrolytes. The range of validity of the equation depends on the solute, solvent and temperature, for aqueous solutions of uni-univalent salts the equation is usually obeyed up to O-1 molar. A and i? are constants for a particular solute and temperature, c is the molar concentration and the viscosity of the pure solvent. The term AZ/c has been shown to be due to interionic forces and an equation2 deduced giving values of A in terms of the absolute mobility of the ions, properties of the solvent and universal constants. B is an empirical constant.

The B coefficient has been empirically divided into cationic and anionic portions3s4 and these have been shown to be linearly related to partial molal ionic entropies, so, cations and anions lying on separate lines .5 In this paper it is demonstrated that B is linearly related to the sum of the partial molal entropies of the ions present. The relevant experimental data are given in Tables and.