Dicarboxylic acids generated by thermal alteration of kerogen and humic acids

Details Dicarboxylic acids generated by thermal alteration of kerogen and humic acids Dicarboxylic acids generated by thermal alteration of kerogen and humic acids

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987gecoa..51.3201k&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 51, Dec. 1987, p. 3201-3207.

Computer Science

4

Dicarboxylic Acids, Kerogen, Molecular Weight, Organic Compounds, Sedimentary Rocks, Temperature Effects, Trace Elements

Scientific paper

Significant amounts (up to 2 percent of organic geopolymers) of low-molecular-weight (LMW) dicarboxylic acids (C2-C10) have been detected during thermal alteration (270 C, 2 h) of kerogens and humic acids isolated from young or ancient lithified sediments. Their distribution is characterized by the predominance of oxalic acid followed by succinic, fumaric, and methylsuccinic acids. These acids are probably released by the breakdown of macromolecular structures, which have incorporated biogenic organic compounds, including diacids, during early digenesis in sediments. Because of their reactivity, LMW diacids may play geochemically important roles under natural conditions.

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