806.    ---------------.  [EISENHUT, O., AND KAUPP, E.]  [Röntgenographic Researches on Iron Catalysts for Ammonia Synthesis.]  Ztschr. Physik. Chem., vol. 133, 1928, pp. 456-471; Chem. Abs., vol. 22, 1928, p. 3073.

     Debye-Scherrer method of powder analysis was used for synthetic NH3 catalysts, which were prepared according to the patent of the Badische Anilin & Soda-Fabrik (German 249,447, abs. 86), and from complex Fe salts KAlFe (CN)6+χKCl.  All of these showed principally pure a-Fe, independently of the method of formation or use.  The Badische Anilin u. Soda-Fabrik catalyst consisted primarily of Fe3O4 in the beginning.  The catalyst from the complex salts after reduction also contained Fe2N, Fe3C, C, etc. in small quantities.

     EISENSTECKEN, F.  See abs. 3051.

     ELAGINA, N. V.  See abs. 790, 796, 804.

     ELDER, J. L.  See abs. 740.