160.    ---------------.  [Destructive Action of Carbon Monoxide and of Gases Containing It.]  Chem. Fabrik, vol. 13, 1940, pp. 101-104; Chem. Abs., vol. 34, 1940, p. 6559.

                  Decomposition of CO into C and CO₂ is accelerated by metals and by some oxides of metals.  Deposition of C occurs within the structure of the metal, weakening or even destroying it.  The temperature regions in which this action is appreciable are plotted for Fe, Fe₂O₃, Ni, NiO, Ni₂O₃, Cr, Mn, Co, and Co₃O₄.  The effect is smallest for Cr and Mn.