315.    ---------------. [BOUDOUARD, O.] [Decomposition of Carbonic Oxide in Presence of Metallic Oxides.]  Compt. Rend., vol. 128, 1899, pp. 307-309; Jour. Chem. Soc., vol. 2, 1899, p. 365. 

                 When CO is passed over heated Ni and Co oxides at 445°, the rate of oxidation is much more rapid than with ferric oxides, as in the latter case the amount of decomposition increases with the quantity of oxide used and with the time.  In all these cases the amount of C deposited is of the same order of magnitude as the oxide employed.  When a large excess of purified C is mixed with the oxide, the results are the same but the action appears to take place more slowly.