Association constants for the NaSO4- ion pair in concentrated cesium chloride solutions

S.G. Capewell; G. Hefter; P.M. May

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Association constants for the NaSO4- ion pair in concentrated cesium chloride solutions

Journal article

Peer reviewed

Association constants for the NaSO4- ion pair in concentrated cesium chloride solutions

S.G. Capewell, G. Hefter and P.M. May

Talanta, Vol.49(1), pp.25-30

1999

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Abstract

Values of the association constant, β(NASO4-), for the weak ion-pair formed by sodium and sulfate ions in aqueous solution have been determined at 25°C by high precision sodium ion-selective electrode potentiometry in solutions of ionic strength ranging from 0.50 to 7.00 M in CsCl media and in 1.00 M Me4NCl. The data in CsCl media were fitted to an extended form of the Debye-Huckel equation which yielded log β(NaSO4-)0 = 0.834 ± 0.005 at infinite dilution. Evidence is also presented for the formation of very weak ion-pairs between Cs+ and SO4/2-.

Details

Title: Association constants for the NaSO4- ion pair in concentrated cesium chloride solutions
Authors/Creators: S.G. Capewell (Author/Creator)
G. Hefter (Author/Creator)
P.M. May (Author/Creator)
Publication Details: Talanta, Vol.49(1), pp.25-30
Publisher: Elsevier BV
Identifiers: 991005542591707891
Murdoch Affiliation: School of Chemical and Mathematical Science
Language: English
Resource Type: Journal article

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