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Thermodynamic mixing properties of pyrrhotine, Fe1_XS
Published online by Cambridge University Press: 05 July 2018
Abstract
Published data from pyrrhotine-vapour equilibrium experiments are used to make inferences concerning the high-temperature thermodynamic mixing properties of pyrrhotine. Darken's quadratic formalism provides the justification for plotting activity of sulphur data against (1−X)2, where X is used in Fe1−XS to express the composition of non-stoichiometric pyrrhotine. Such plots show that the thermodynamic behaviour of pyrrhotine appears to be different on either side of X = 0.125, the Fe7S8 composition.
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- Research Article
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- Copyright © The Mineralogical Society of Great Britain and Ireland 1983
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