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Return to Abstracts of Literature 1500-1749

Literature Abstracts

 1699.    ---------------.  [KAWAKITA, K.]  Chemisorption of Carbon Dioxide by Reduced Iron.  III.  Thermodynamic Consideration of the Chemisorption.  Rev. Phys. Chem. Japan, vol. 13, 1939, pp. 87-95; chem. Abs., vol. 33, 1939, p. 9084.

        Free-energy equations are derived for the possible reactions in the chemisorption of CO₂ by reduced Fe, and the free-energy values are calculated for 360°.  CO as an intermediate product is identified by its reduction of PdCL₂ solution.  Fe₃O₄ is identified as a product.  These facts and the free-energy values suggests that the chemisorption consists of the following reactions:  Fe+CO₂=FeO+CO, 3FeO+CO₂=Fe₃O₄+CO, 3Fe+4CO₂=Fe₃O₄+4CO.2CO=C+CO₂.  The apparent reaction of the system becomes 3Fe+2CO₂=Fe₃O₄+2C.