Published by Misasa Medical Center, Okayama University Medical School
Published by Misasa Medical Center, Okayama University Medical School

<Formerly known as>
岡大三朝分院研究報告 (63号-72号) 環境病態研報告 (57号-62号)
岡山大学温泉研究所報告 (5号-56号) 放射能泉研究所報告 (1号-4号)

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三朝溫泉の化学的研究(第18報) 硫黄泉の成因に関する黄鉄鑛多硫化物説

芦沢 峻 岡山大学温泉研究所化学部
抄録
In Misasa there occur only few weak sulfur springs, their maximum hydrogen sulfide content being about 5mg per liter. The ground of Misasa consists of granite and there is no active volcano in the vicinity. So the author tried to explain the mechanism of the occurrence of sulfur spring in Misasa by a reaction of the primarily alkaline thermal water upon pyrite. Namely: XFeS(2) + 3Na(2)C(O)3 = 2Na(2)S(1-5) + Na(2)S(2)O(3) + 3CO(2) + XFeS(1-2) Thiosulfate in sulfur spring waters should not be taken for a secondary product from hydrogen sulfide as accepted generally, but is most probably a primary product to the latter. The phenomenon of white turbidity in sulfur spring is caused mainly by the sulfur liberated from the polysulfide decomposed by the change in pH and temperture of thermal waters and not by the sulfur liberated from the oxidation of hydrogen sulfide. Some experimental data were shown to support the theory.
ISSN
0369-7142
NCID
AN00032853