3223.     ---------------.  [SMITS, A., AND WOLFF, L. K.]  [Velocity of Transformation of Carbon Monoxide.  II.]  Proc. “Koninkl. Akad. Wetenschappen Amsterdam”, vol. 6, 1903, pp. 66-72; Jour. Chem. Soc., vol. 83, II, 1903, p. 628.

        By the method previously used, it was proved, with pumice Ni-C as catalyst, that at 445° the conversion of CO into CO₂ and C is an unimolecular reaction, contrary to Schenck and Zimmerman’s statement.  No satisfactory reaction constant could be obtained at 445° owing to the fact that at this temperature the reaction is reversible, although Boudouard has stated that at 445° CO can be completely decomposed into C and CO₂.  Starting with CO₂ in the reaction vessel at 445° it was found that after prolonged heating CO was formed, but the same equilibrium could not be obtained as when the experiment was carried out with CO.  Even on using a catalyst obtained by reducing Ni oxide with H₂, it has not been found possible to verify Schenck and Zimmerman’s results, and no explanation can be offered of why they obtained results leading to the conclusion that the reaction is bimolecular.