2436.     NEUMANN, B., KRÖGER, C. AND FINGAS, E.  [Water-Gas Generation From Coal and Coke.]  Gas- u. Wasserfach, vol. 75, 1932, pp. 972-973, 973-974; Ztschr. Elektrochem., vol. 38, 1932, pp. 936-938; Chem. Abs., vol. 27, 1933, p. 827.

        Polemical (abs. 713).  The degree of attainment of the water-gas equilibrium depends more on the ash content of the given coke than on its reactivity.  Dolch’s conclusions also apply only to a limited temperature range.  Dolch has not proved that CO₂ is not formed directly by the reaction of H₂O on C.  Experiments with graphite showed that additions of Fe₂O₃, CuO, and K₂O all increased its reactivity but that only the 1^st oxide permitted attainment of the water-gas equilibrium.