1194. GHOSH, J. C., SASTRI, M. V. C., AND VEDARAMAN, S. Adsorption Studies on Methanol-Synthesis Catalysts. I. Adsorption of Carbon Monoxide and Hydrogen and Zinc Oxide-Chromium Oxide Mixture. Current Sci., vol. 19, 1950, p. 342. Chem. Abs., vol. 45, 1951, p. 7406. Temperature range studied was 50°-200° for CO and up to 250° for H2. The adsorption isobars of CO at pressures below 1 atm. show 2 maxima, at 52° and at 178°. The activation energy is 5-8.5 kcal., and the heat is 6 kcal. for 0.9 cc. adsorption/gm. For H2, activated adsorption is observed at the lowest temperature; the heat is 10 kcal. for 1.30 cc. adsorption/gm. and the energy of activation is 8.5 kcal. for 1.19 cc. adsorption/gm. at 37 cm. pressure. The maximum adsorption is at 204°. GIBSON, E. J. See abs. 1131a. GIESEN. See as. 3703, 3704. GIESSEN, A. See abs. 407. |