The application of variable atmosphere thermomagnetometry to the thermal decomposition of pyrite

Thermomagnetometric studies of pyrrhotites, Fe( 1− x )S, formed during the decomposition of pyrite, were made in dry, oxygen-free nitrogen, 3% hydrogen in nitrogen, and 1.2% oxygen in nitrogen. Decomposition was demonstrated to be more complex than could be determined by thermogravimetric measuremen...

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Bibliographic Details
Published inReactivity of solids Vol. 8; no. 1; pp. 159 - 168
Main Authors Hurst, H.J., Levy, J.H., Warne, S.St.J.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 1990
Oxford Elsevier
New York, NY
Subjects
Chemistry
Exact sciences and technology
Inorganic chemistry and origins of life
Kinetics and mechanism of reactions
Pyrite
Transition metal Compounds
Thermogravimetry
Reaction mechanism
Chemical decomposition
Non stoichiometric composition
Iron IV Sulfides
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Summary:Thermomagnetometric studies of pyrrhotites, Fe( 1− x )S, formed during the decomposition of pyrite, were made in dry, oxygen-free nitrogen, 3% hydrogen in nitrogen, and 1.2% oxygen in nitrogen. Decomposition was demonstrated to be more complex than could be determined by thermogravimetric measurements. X-ray powder diffraction techniques, or chemical analysis of quenched pyrite samples. Thermomagnetometry was shown to be a sensitive and useful technique, enabling the detection of a number of magnetic phases within the decomposition products.
ISSN:0168-7336
1872-7700
DOI:10.1016/0168-7336(90)80016-D