Oxidation-reduction Equilibrium of Metallic Chromium

Thermodynamic Properties of the Oxides and their Vaporization Processes.

“…The H20:H2 ratios obtained by Grube and Fiad (179), Wartenberg and Aoyama (429), Aoyama and Kanda (10), and Okada, Kohubo, and Matsuo (322) for the reduction of Cr203 to chromium metal by hydrogen agree rather well with the ratios calculated from the heat of formation shown here for Cr203 and the entropies of the reactants.…”

“…at 948°K. For 3Cs20(s) = 4Cs(g) + Cs203(s), one calculates an equilibrium constant of about [10][11][12][13][14][15][16][17][18][19][20][21][22] atm. at 763°K.…”