PATENTS

      1619.  IIJIMA. T.  (Kawaguchi Chemical Industries Co.).  [Catalyst for Hydrogenation.]  Japanese Patent 2224 (1951), May 8, 1952.  Chem. Abs., vol. 47, 1953. p. 2519.

            NiCO₃·2Ni(OH)₂·kieselguhr (25 gm.) is reduced in H₂ at 400º, the product poured into 100 ml. 0.01 N H₂O₂, let stand 1 hr., and dried to make a catalyst stable in air.