2199.     ---------------.  [KODAMA, S., MATSUMURA, S., AND ANDO, T.]  Physicochemical Investigations on Gasoline Synthesis.  VI.  Velocity of Adsorption of Hydrogen by Cobalt-Thoria-Infusorial Earth Catalyst.  Jour. Soc. Chem. Ind. (Japan), vol. 44, 1941, pp. 920-924; Chem. Abs., vol. 42, 1948, p. 8440.

        With a catalyst of Co, ThO₂, and infusorial earth in the ratio 100:18:150, there was no change in the mechanism of adsorption, but there was further increase in A, with adsorption taking place more rapidly and with the final amount of H₂ adsorbed being greater than in previous cases.  Addition of Th not only increased the number of active adsorbing centers, but also produced centers of greater activity at lower temperature, so that it greatly decreased the temperature of activated adsorption of H₂.