Solid-solute phase equilibria in aqueous solution. III. A new application of an old chemical potentiometer

E. Königsberger; H. Gamsjäger

doi:10.1016/0304-4203(90)90077-P

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Solid-solute phase equilibria in aqueous solution. III. A new application of an old chemical potentiometer

Journal article

Peer reviewed

Solid-solute phase equilibria in aqueous solution. III. A new application of an old chemical potentiometer

E. Königsberger and H. Gamsjäger

Marine Chemistry, Vol.30, pp.317-327

1990

DOI: https://doi.org/10.1016/0304-4203(90)90077-P

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Abstract

Incongruent dissolution of mixed crystals leading to a stable thermodynamic equilibrium as well as congruent dissolution leading to a metastable equilibrium termed ‘stoichiometric saturation’ are governed by the same principles of phase theory, when in the latter case the constraint of constant composition of the solid phase is taken into consideration. A simple galvanic cell was used as chemical potentiometer and it was found that reliable thermodynamic data can be obtained on one-component phase transitions such as aragonite → calcite as well as on ‘stoichiometrically saturated’ homogeneous solid mixtures of Co-Mn carbonates. With this method data for modelling the solubility behavior of solid solutions become accessible.

Details

Title: Solid-solute phase equilibria in aqueous solution. III. A new application of an old chemical potentiometer
Authors/Creators: E. Königsberger (Author/Creator) - Montanuniversität Leoben
H. Gamsjäger (Author/Creator) - Montanuniversität Leoben
Publication Details: Marine Chemistry, Vol.30, pp.317-327
Publisher: Elsevier B.V.
Identifiers: 991005542424607891
Copyright: © 1990 Published by Elsevier B.V.
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Journal article
Note: Presented at the section on Atmospheric and Marine Chemistry of the 32nd IUPAC Congress in Stockholm, Sweden, August 2–7, 1989.

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Citation topics: 2 Chemistry; 2.165 Nanofibers, Scaffolds & Fabrication; 2.165.1082 Calcium Carbonate Crystallization
Web Of Science research areas: Chemistry, Multidisciplinary; Oceanography
ESI research areas: Geosciences