Computer Science
Scientific paper
Jun 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975gecoa..39..833p&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 39, Issue 6-7, pp.833-845
Computer Science
Scientific paper
Emf measurements are reported on cells using a thoria-yttria solid oxide electrolyte. The measured potentials from two cells, Cr, Cr 2 O 3 ¦ThO 2 -Y 2 O 3 ¦Co, CoQ and Cr, Cr 2 O 3 ¦ThO 2 -Y 2 O 3 ¦ Mn, MnO, were used to calculate the standard Gibbs free energy of formation of Cr 2 O 3 in the temperature range 875-1275°C. The two separate series of measurements are in good agreement with critically assessed data from the literature based on gas equilibration and calorimetric results. A summary of solid oxide electrolyte studies on mineral systems is presented with special attention paid to chromium-bearing solutions or compounds. The application of this experimental technique in investigating thermodynamic properties of chromium minerals is discussed.
Mazandarany F. N.
Pehlke R. D.
Radzilowski R. H.
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