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 1465.    HOLLINGS, H., AND GRIFFITH, R. H.  Activated Adsorption of Hydrogen.  Nature, vol. 129, 1932, p. 834; Chem. Abs., vol. 26, 1932, p. 4224.

       Adsorption of hydrocarbons at high temperatures (up to 450°) takes place with every metal or metallic oxide so far investigated.  (Cr, Ti, Fe, Cu, Mo, Zn, Cd, Ca, Zr, Mg, Sn, Co, Al, Mn, and W).  The velocity and extent of adsorption vary greatly in different cases and are also considerably influenced by the presence of impurities.