Chemical evolution studies: the radiolysis and thermal decomposition of malonic acid

• DOI: 10.1007/s10967-014-3711-z
• Publication Date: 2014-11-01T06:47:25Z
• Authors: J. Cruz-Castañeda; A. Negrón-Mendoza; D. Frías; M. Colín-García; A. Heredia; S. Ramos-Bernal; S. Villafañe-Barajas
• Keywords: 0303 health sciences; 03 medical and health sciences; 6. Clean water

In the context of chemical evolution a simulation of a hydrothermal vent was performed. The thermolysis and radiolysis of malonic acid in aqueous solution were studied. The thermolysis was done by heating the samples (95 °C) and radiolysis using gamma radiation. Products were identified by gas chromatography and gas chromatography–mass spectrometry. The thermal treatment produced acetic acid and CO2. The radiolysis experiments yield carbon dioxide, acetic acid, and di- and tricarboxylic acids. A theoretical model of the chemical process occurring under irradiation was developed; this was able to reproduce formation of products and the consumption of malonic acid.