311.    BOUDOUARD, O.  [Decomposition of Carbonic Anhyride in Presence of Carbon.]  Compt. rend., vol. 128, 1899, pp. 824-825; Jour. Chem., Soc., vol. 2, 1899, p. 417. 

                   When CO₂ is heated at 650° with charcoal and with C from the decomposition of CO, the proportion of CO in the gas gradually increases, the reaction being more rapid with the charcoal than with the C.  The limit of the reaction with charcoal was reached after 12 hr., and the composition of the gaseous mixture (CO₂ 61 vol., CO 39 vol.), is identical with the composition of the gas at the limit of the reaction between CO and Co oxide at the same temperature.