Conductance of lithium, sodium and potassium nitrates in acetonitrile-water and ethanol-water isodielectric mixtures at 25°C

Sanchez, M. M. ; Moran, C. ; Quintana, C. ; Vivo, A.
Springer
Published 1989
ISSN:
1572-8927
Keywords:
Electrolyte conductance ; single-ion conductance ; ion-pair formation ; ethanol-water ; acetonitrile-water ; isodielectric mixtures
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Precise conductance measurements of solutions of lithium, sodium and potassium nitrates were made at 25°C in acetonitrile-water and ethanol-water isodielectric mixtures, containing up to 15 mole percent organic-solvent, and the data analyzed by the 1978–80 Fuoss conductance equations. Single ion conductances were determined with the help of transference numbers in the case of ethanol-water mixtures. Ion-pair association constants are discussed in terms of contact and solvent-separated ion-pairs and were found to be almost equal to those for the halides. The anion appears more sensitive than the cations to the solvent structure in mixtures rich in water.
Type of Medium:
Electronic Resource
URL: