|
Precise measurements of electrolytic
conductivities, densities, and viscosities of lithium
hexafluoroarsenate (LiAsF6) have been reported in w1=0.00, 0.25,
0.50, 0.75, 1.00 mass fraction of ethylene glycol in methanol at
298.15 K. The limiting molar conductivities (Λ0), association
constants (KA), and the distance of closest approach of the ions (R)
have been evaluated using the Fuoss conductance equation (1978) for
ion-pair formation. The Walden products have been obtained and
discussed. Apparent molar volumes (fV) and viscosity B-coefficients
have been determined from the density (ρ) and viscosity (h) data,
respectively. The limiting apparent molar volumes (fVo), and
experimental slopes (SV*) have been obtained from Masson equation
and interpreted in terms of ion-solvent and ion-ion interactions,
respectively. The viscosity data have been analyzed using Jones-Dole
equation, and the derived parameters A- and B-coefficient have also
been interpreted for ion-ion and ion-solvent interactions,
respectively, in the solutions. |
| |
|
|
Key words: Lithium
hexafluoroarsenate, Ethylene glycol, Methanol, Conductivity,
Density, Viscosity. |
|
