Formation of organic products in self-radiolyzed calcium carbonate |
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Authors: | Guadalupe Albarrán Kenneth E. Collins Carol H. Collins |
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Affiliation: | (1) Centro de Estudios Nucleares, Universidad Nacional Autónoma de México, Ciudad Universitaria, A. Postal 70-543, 04510 México, Distrito Federal, México;(2) Instituto de Química, Universidade Estadual de Campinas, C. Postal 6154, 13081 Campinas, São Paulo, Brasil |
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Abstract: | Summary Calcium carbonate labeled with carbon-14 was self-irradiated by means of the -decay of its carbon-14. A number of products containing one or two carbon atoms were identified by high performance liquid chromatography. Formic and oxalic acids were produced in relatively high yields, while glyoxylic, glycolic, and acetic acids, as well as formaldehyde and methanol, were formed in lower yields. These results support the suggestion that carbonates subjected to ionizing radiation could have been a source of carbon for organic synthesis on the primitive earth. |
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Keywords: | Ionizing radiation Chemical evolution Calcium carbonate Radiolysis Selfradiolysis Carboxylic acids |
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