Untersuchungen über das System Cermischmetall—Wasserstoff

The Hydrides of the Rare-Earth Metals

“…This is followed by a horizontal branch almost coinciding with the x-axis, and this in turn is followed by a third branch which rises steeply. Analogous curves with good reproducibility were obtained by Dialer 49 .…”

“…Using improved methods for purifying the starting materials Dialer 49 in 1948 prepared cerium hydride of stoichiometric composition CeH 3 from mischmetall, the hydrogen content being referred to pure cerium; in 1955 he obtained cerium trihydride by hydrogenating pure cerium at room temperature 7 ' 8 . This was also achieved by Mikheeva and Kost 20 ' 52 showed that the curve relating the composition of cerium hydrides and temperature (Fig.…”

The Reaction of Hydrogen with Cerium Metal at 25°1

“…In Fig. 5 the reaction rates thus obtained are plotted as a function of pressure for each of the five samples. Five straight lines, having the same slope but different intercepts, describe the data with reasonable accuracy.…”