Partial Molal Volume and Viscosity of Tetraethylammonium Chloride in Dimethyl Sulfoxide-Water Mixtures

[摘要] The partial molal volumes and relative viscosities of tetraethylammonium chloride in a series of dimethyl sulfoxide (DMSO)-water mixtures were measured at 30¡É. A maximum structuredness of solvent, that leads to a minimum viscosity A-coefficient and a maximum viscosity B-coefficient of the Jones-Dole equation(¥çr = 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¡Æ, and the B-coefficient was found to be B = 2.5 Ve¡Æ in the Einstein equation.

[学科分类] 化学（综合）