Return to Abstracts of Literature

Return to Abstracts of Literature 1500-1749

Literature Abstracts

 1535.    ---------------.  [IIZIMA, S.]  [Sorption of Hydrogen by Reduced Nickel.  II.  At Low Temperatures.]  Sci. Papers Inst. Phys. Chem. Research (Tokyo), vol. 23, 1933, pp. 34-43.  Chem. Abs., vol. 28, 1934, p. 2589.

       Adsorption of H2 under low pressures by reduced Ni was measured at 100, 19, 0, -45.2, -78.5, -112 and 183.5.  The results of Nikitin, see abs. 2469, at 19 were not confirmed.  Ni and H2 did not form a compound at 19.  Isobars all showed maxima 0-20, and minima were found between 80 and 180.  The lower the equilibrium adsorption pressure the lower the temperature of the minimum.  Irregularities in the isothermal at 183 are accounted for on the basis of local heating of the adsorbent due to adsorption of large quantities of H2.  The isothermal is smooth when H2 is admitted slowly.