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Int J Mol Sci. 2008 Jun;9(6):1024-33. doi: 10.3390/ijms9061024. Epub 2008 Jun 20.

Ion-molecule reactions and chemical composition of emanated from herculane spa geothermal sources.

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Babeş Bolyai University, Cluj-Napoca, Romania.


The paper presents a chemical composition analysis of the gases emanated from geothermal sources in the Herculane Spa area (Romania). The upper homologues of methane have been identified in these gases. An ion-molecule reaction mechanism could be implicated in the formation of the upper homologues of methane. The CH(4) (+) ions that appear under the action of radiation are the starting point of these reactions. The presence of hydrogen in the emanated gases may be also a result of these reactions.


Ion-molecule reactions; Methane; Methane upper homologues; Radioactivity

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