3173.     SHIBATA, Z., AND MORI, I.  [Reduction Equilibrium Between Metallic Oxide and Hydrogen.  I.  Measurement of CoO+H2=Co+H2O by New Methods.]  Ztschr. anorg. Chem., vol. 212, 1933, pp. 305-316; Chem. Abs., vol. 27, 1933, p. 4468.

        Equilibrium CoO+H₂=Co+H₂O was studied at 921°, 821°, 721°, 622°, 522°, and 422°.  The relation between the equilibrium constant K and temperature is:  log K=(494.191/T)+1.08690.  The dissociation pressure of CoO and the equilibrium of H₂O gas at 400°-1,000° are calculated.