313.    ---------------. [BOUDOUARD, O.] [Decomposition of Carbonic Oxide by Metallic Oxides.]  Compt. rend., vol. 128, 1899, pp. 1522-1523; Bull. Soc. Chim., vol. 21, 1899, pp. 463-465, 712-713; Jour. Chem. Soc., vol. 2, 1899, p. 595. 

                   When CO is decomposed at 800° in presence of oxide of Ni or Co or of FE₂O₃, the amount of decomposition depends on the time of reaction.  The speed of reaction at 800° is greater than at 650°, equilibrium being attained in 2 hr. at the higher temperature and only after 6 hr. at the lower.  In the presence of Ni or Co oxide at 800°, no further change occurs after the gaseous mixture contains 7% of CO₂ and 93% of CO.