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Relationships among Gibbs free energies and enthalpies of formation of phosphates, oxides and aqueous ions

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Abstract

Two parameters ΔGO2− and ΔHO2− are defined as the differences between respectively the Gibbs free energies and the enthalpies of formation of an oxide and its corresponding aqueous cation. The Gibbs free energies and enthalpies of formation of phosphates from their consituent oxides are shown to be linear functions of respectively ΔGO2– and ΔHO2− of their constituent cations.

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  1. Institut de Géologie de l'Université Louis Pasteur et Centre de Sédimentologie et Géochimie de la Surface, 1, rue Blessig, F-67084, Strasbourg, France

    Yves Tardy & Philippe Vieillard

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  1. Yves Tardy
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  2. Philippe Vieillard
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Tardy, Y., Vieillard, P. Relationships among Gibbs free energies and enthalpies of formation of phosphates, oxides and aqueous ions. Contr. Mineral. and Petrol. 63, 75–88 (1977). https://doi.org/10.1007/BF00371677

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  • DOI: https://doi.org/10.1007/BF00371677

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