ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 19, Number 1
JKCSEZ 19(1)
February 20, 1975 

The partial molal volumes and relative viscosities of tetraethylammonium chloride in a series of dimethyl sulfoxide (DMSO)-water mixtures were measured at 30℃. A maximum structuredness of solvent, that leads to a minimum viscosity A-coefficient and a maximum viscosity B-coefficient of the Jones-Dole equation(ηr = 1 + AC1/2 + BC), was found at 0.2∼0.3 mole fraction of DMSO. The solvent structure, that leads to a minimum partial molal volume due to the maximum electrostrictive effect of chloride ion and to a minimum viscosity B-coefficient, was found at 0.4∼0.5 mole fraction of DMSO. An approximate relationship between the limiting effective flowing volume, Ve°, and the B-coefficient was found to be B = 2.5 Ve° in the Einstein equation.