Sulfur isotopic fractionation between sulfur and sulfuric acid in the hydrothermal solution of sulfur dioxide

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1966 English Publisher:Geochemical Society of JapanJournal:GEOCHEMICAL JOURNAL, volume 1, pages 45-50 (issn: 0016-7002,

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Authors: Oana, Shinya; Ishikawa, Hitomi;

doi: 10.2343/geochemj.1.45

Sulfur isotopic fractionation between sulfur and sulfuric acid in the hydrothermal solution of sulfur dioxide

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Abstract

Sulfur and sulfur compounds involved in the chemical reaction, 3H2SO3= 2H2SO4+S+H2O in the temperature range from 150 to 300°C have been quantitatively determined. After the disproportionation reaction of sulfurous acid is completed, sulfur decreases according to the chemical reaction, 4S+4H2O = 3H2S+H2SO4. These two reactions may be responsible for the production of sulfuric acid in hot spring water. 34S is enriched in sulfuric acid and depleted in sulfur revealing 16.1 to 21.1‰ fractionation between them. This would account for the enrichment of 34S in sulfuric acid encountered in hot spring water.

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Nagoya University
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