A study of liquid-junction potentials in aqueous solutions
β Scribed by G. Bianchi; G. Faita; R. Galli; T. Mussini
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- English
- Weight
- 601 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0013-4686
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β¦ Synopsis
Due to the sunultaneously unknown mdlvldual ion actlvny coefficients and liquid-lunctlon potentials, a reasonable convention must be mtroduced deflmng the former m order to permn the calculation of the latter. The Guggenheim convention 1s analysed and chosen
Examples are reported of detennmatlon of potentials arlsmg at lunctrons between concentrated strong acids and salt bridges Liquid lunctlon potentials set up between two concentrated strong actds at identical molahtles are also consldered, on the basts of a modrtied Henderson equation R&urn&-A cause de l'macessrbrhte snnultan6e des coefficients mdtvlduels d'actn& romque et des potentlels de lonctlon hqmde, une conventton ratlonnelle et convenable dolt &tre etabhe pour les uns, atin de pouvolr calculer les autres. Guggenheim On analyse et applique la convention propos& autrefois par On presente done des exemples de determmatlon de potentlels de lonctlon hqulde concemant des acldes forts (dans le domame des hautes concentrations) en contact avec un pont sahn On etudre enfln le cas de potentlels de lonctlon hqmde s'ttabhssant entre deux acldes forts a la m&me molahte, a l'alde dune modmcatton de l'equatlon de Henderson
Zusanunenfassnng-Durch
Annahme der Guggenhenn-Konventlon uber die AktlvltatskoetBxtenten berechnet man em Konventtonelles Potential an der Grenzflache zwlschen zwel Losung, z B sauren 2x u KCl-Losungen Das Potential an der Grenztlache zwrschen zwer sauren Konzentrrerten Losungen wlrd tm wetteren durch eme veranderte Henderson-Glelchung berechnet
π SIMILAR VOLUMES
AImtract-Meamrements have been made on cells which contain liquid junctions between two solutions containing different solvents. By employing cells in which the two solutions are saturated with the same salt, it has been possible to directly measure the contribution to the liquid junction potential