Phase diagram of the As-S system

Phase diagram of the As-S system

Thermodynamic modeling of phase equilibria is used to construct a consistent p-T-x phase diagram of the As-S system. Experimental evidence is presented that As2S5 is a metastable phase at moderate pressures. Analytical expressions are derived for the subsolidus phase equilibria in the As-S system. I...

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Veröffentlicht in:Inorganic materials 2007-02, Vol.43 (2), p.95-104
Hauptverfasser: Emelina, A. L., Alikhanian, A. S., Steblevskii, A. V., Kolosov, E. N.
Format: Artikel
Sprache:eng
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Zusammenfassung:Thermodynamic modeling of phase equilibria is used to construct a consistent p-T-x phase diagram of the As-S system. Experimental evidence is presented that As2S5 is a metastable phase at moderate pressures. Analytical expressions are derived for the subsolidus phase equilibria in the As-S system. It is shown for the first time that crystalline As4S3 sublimes congruently and that two liquid-vapor azeotropes exist in the As-S system.
ISSN:0020-1685
1608-3172
DOI:10.1134/S002016850702001X