Composition of Aqueous Solutions in Equilibrium with Sulfides and Oxides of Iron at 350°C

Solutions of potassium chloride (pH-buffered and 1-molal) equilibrated at 350°C with pyrrhotite, pyrite, and magnetite contained approximately 1 millimole of reduced sulfur and less than 0.1 millimole of oxidized sulfur per kilogram. Similar solutions equilibrated with pyrite, magnetite, and hematit...

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Published inScience (American Association for the Advancement of Science) Vol. 162; no. 3856; pp. 895 - 896
Main Authors Raymahashay, Bikash C., Holland, Heinrich D.
Format Journal Article
LanguageEnglish
Published United States American Association for the Advancement of Science 22.11.1968
Subjects
Chemical precipitation
Hematite
Kaolinite
Magnetite
Potassium
Pyrites
Rapid quenching
Sulfides
Sulfur
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Summary:Solutions of potassium chloride (pH-buffered and 1-molal) equilibrated at 350°C with pyrrhotite, pyrite, and magnetite contained approximately 1 millimole of reduced sulfur and less than 0.1 millimole of oxidized sulfur per kilogram. Similar solutions equilibrated with pyrite, magnetite, and hematite contained approximately 1 millimole of reduced sulfur, but 3 to 6 millimoles of oxidized sulfur per kilogram. Both types of solutions contained less than 0.1 millimole of iron per kilogram at pH ≥ 6 and approximately 100 millimoles per kilogram at pH 2.
Bibliography:ObjectType-Article-1
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ISSN:0036-8075
1095-9203
DOI:10.1126/science.162.3856.895