A conductivity equation for concentrated aqueous solutions

✍ Scribed by M. Della Monica; A. Ceglie; A. Agostiano

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 465 KB
• Volume: 29
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(84)87138-8

✦ Synopsis

The effect of the viscosity medium change on the electrophoretic term of the conductivity equation has been evaluated for concentrated NaCI, NaC104, NaNOa, NH,CI and NH4N0, aqueous solutions. For NaCl and NH,Cl systems a good agreement between the experimental results and the ones obtained through a proposed equation was obtained. In the case of NaN03 and NH4N03 systems, where an appreciable association to ion pairs was found, the dissociation degree of the electrolytes. OL, and the thermodynamic association constant of the NHINO, system were also calculated. The results of the NaCIOa-water system seem to confirm a previous hypothesis on the anomalous conductance of the Clod ions in the field bf high concentrations.