Email this article Thermodynamic properties of spinel MgAl2O4: A mass spectrometric study
- Authors: Shornikov S.I.1
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Affiliations:
- Vernadskii Institute of Geochemistry and Analytical Chemistry
- Issue: Vol 91, No 2 (2017)
- Pages: 287-294
- Section: Chemical Thermodynamics and Thermochemistry
- URL: https://journals.rcsi.science/0036-0244/article/view/169257
- DOI: https://doi.org/10.1134/S0036024417020303
- ID: 169257
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Abstract
The activities of oxides in stoichiometric spinel MgAl2O4 in the temperature range 1851–2298 K were determined from the data obtained by the Knudsen effusion mass spectrometry. The resulting Gibbs energies of spinel formation from simple oxides, the enthalpies and entropies of spinel formation from simple oxides (–12.02 ± 1.14 kJ/mol and 5.03 ± 0.56 J/(mol K), respectively), and the spinel melting enthalpy (55.81 ± 4.62 kJ/mol) satisfactorily agree with the available thermodynamic data.
About the authors
S. I. Shornikov
Vernadskii Institute of Geochemistry and Analytical Chemistry
Author for correspondence.
Email: sergey.shornikov@gmail.com
Russian Federation, Moscow
