3580.     VON WAUGENHEIM, F.  [Preparation of Carbon From Carbon Monoxide.]  Brennstoff-Chem., vol. 8, 1927, pp. 385-388; Ges. Abhandl. Kenntnis Kohle, vol. 8, 1929, pp. 227-233; Chem. Abs., vol. 22, 1928, p. 2641.

        Attempt was made to prepare pure C by passing CO over a pure Fe₂O₃ catalyzer at temperatures under 650°.  The reduced Fe was removed from prepared ‘C by vaporization in a current of Cl.  The recovered C was not entirely Fe-free, but it was nonmagnetic.  It was a good conductor of electricity.