3031.     SAUERLAND, W.  [Iron Carbide.]  Neue Gieserei, Tech.-Wiss. Beihefte 1, 1949, pp. 43-44; Chem. Abs., vol. 44, 1950, p. 5242.

        Relations among heat of reaction, reaction entropy, reaction work, and equilibrium constant are indicated for the reaction 3Fe+C=Fe₃C. Up to 627°, the reaction does not proceed spontaneously.  Although the driving force of the reaction increases with increasing temperature, the equilibrium in this range remains on the side 3Fe+C.  Numerical values for the reaction heat, entropy, work, and equilibrium constant are given at 100° intervals for the temperature range 300°-900° K.