2501. OGAWA, E., TADA, M., AND OKUNA, T. Studies of Catalytic Action by Conversion Between Para-Hydrogen and Ortho-Hydrogen. I. (a) Conversion by Magnetized Nickel Wire. (b) Conversion by Catalyst for Ammonia Synthesis. Jour. Soc. Chem. Ind. (Japan),

2501. OGAWA, E., TADA, M., AND OKUNA, T. Studies of Catalytic Action by Conversion Between Para-Hydrogen and Ortho-Hydrogen. I. (a) Conversion by Magnetized Nickel Wire. (b) Conversion by Catalyst for Ammonia Synthesis. Jour. Soc. Chem. Ind. (Japan), vol. 45, suppl. binding, 1942, pp. 387-389; Chem. Abs., vol. 44, 1950, p. 7637.

At 73°, the activation energy of the o-p-H₂ conversion over Ni was 3,000 cal. for unmagnetized catalyst and 6,000 for magnetized catalyst. At 112° the effect of magnetization disappeared, indicating that the conversion changes from a magnetic to activated adsorption mechanism. The same change of mechanism exists in NH₃ synthesis.

OGAWA, S. See abs. 2299.

OGAWA, T. See abs. 1754a, 3176.

OGAWA, T., KIMUMAKI, J., AND FUJISAKI, T. Iron Catalyst for Synthetic Petroleum. II. Some Characteristic Properties of Iron Catalyst for Synthetic Petroleum. See abs. 3177.