Journal article
Potentiometric investigation of the weak association of sodium and carbonate ions at 25°C
Journal of Solution Chemistry, Vol.27(10), pp.865-877
1998
Abstract
The weak association between sodium and carbonate ions has been investigated at 25°C using high-precision sodium ion-selective electrode potentiometry in solutions of ionic strength ranging from 0.5 to 7.0 M in CsCl and in 1.0 M Me4NCl media. The protonation constants of CO2-3 (aq) were also measured, using a H+-responsive glass electrode in 1.0 M Me4NCl and NaCi. The value of the ion-pair association constant calculated from the difference in the protonation constants in these two media was in excellent agreement with that obtained from the Na+ISE measurements. Evidence is also presented for the formation of extremely weak ion pairs between Na+ and HCO-3 and between Cs+ and CO2-3.
Details
- Title
- Potentiometric investigation of the weak association of sodium and carbonate ions at 25°C
- Authors/Creators
- S.G. Capewell (Author/Creator)G. Hefter (Author/Creator)P.M. May (Author/Creator)
- Publication Details
- Journal of Solution Chemistry, Vol.27(10), pp.865-877
- Publisher
- Springer Netherlands
- Identifiers
- 991005542060207891
- Murdoch Affiliation
- School of Chemical and Mathematical Science
- Language
- English
- Resource Type
- Journal article
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