Radiolysis of aqueous solutions of acetic acid in the presence of Na-montmorillonite
| Autor: | R, Navarro-González, A, Negrón-Mendoza, S, Ramos, C, Ponnamperuma |
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| Rok vydání: | 1990 |
| Předmět: |
Carbon Monoxide
Geological Phenomena Radiochemistry Chemical Phenomena Free Radicals Carboxylic Acids Geology Acetates Carbon Dioxide Chemistry Models Chemical Gamma Rays Spectroscopy Fourier Transform Infrared Bentonite Clay Aluminum Silicates Computer Simulation Cobalt Radioisotopes Methane Acetic Acid Hydrogen |
| Zdroj: | Sciences geologiques: Memoire. 85 |
| ISSN: | 0302-2684 |
| Popis: | The gamma-irradiation of 0.8 mol dm-3 aqueous, oxygen-free acetic acid solutions was investigated in the presence or absence of Na-montmorillonite. H2, CH4, CO, CO2, and several polycarboxylic acids were formed in all systems. The primary characteristics observed in the latter system were: (1) Higher yield of the decomposition of acetic acid; (2) Lower yield of the formation of polycarboxylic acids; (3) No effect on the formation of methane; (4) Higher yield of the formation of carbon dioxide; and (5) The reduction of Fe3+ in the octahedral sites of Na-montmorillonite. A possible reaction scheme was proposed to account for the observed changes. The results are important in understanding heterogeneous processes in radiation catalysis and might be significant to prebiotic chemistry. |
| Databáze: | OpenAIRE |
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