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GEOREF RECORD

The system Cu-Rh-S at 900 degrees , 700 degrees , 540 degrees and 500 degrees c

Sven Karup-Moller and Emil Makovicky
The system Cu-Rh-S at 900 degrees , 700 degrees , 540 degrees and 500 degrees c
The Canadian Mineralogist (December 2007) 45 (6): 1535-1542

Abstract

Phase relations in the dry condensed system Cu-Rh-S were determined at 900, 700, 540 and 500 degrees C. At 900 degrees C, the system contains digenite, four rhodium sulfides (Rh (sub 17) S (sub 15) , Rh (sub 3) S (sub 4) , Rh (sub 2) S (sub 3) and RhS (sub approximately 3) ), three ternary sulfides (CuRh (sub 2) S (sub 4) , Cu (sub x) RhS (sub 3+x) and a fibrous sulfide in the range Cu (sub 11.9) Rh (sub 24.6) S (sub 63.6) -Cu (sub 20.4) Rh (sub 19.8) S (sub 59.7) ), Cu-S sulfide melt, and Cu-Rh alloys. At 700 degrees C, the ternary association changes to CuRh (sub 2) S (sub 4) , CuRhS (sub 3) , and CuRhS (sub 4) . All these phases persist with little change at 540 degrees C. At 500 degrees C, CuS appears, and the number of phases is reduced; only CuRhS (sub 4) persists as a ternary phase. Ranges of solid solution for Cu-Rh alloys drop drastically with temperature. The solubility of Cu in Rh sulfides increases moderately as temperature decreases from 900 degrees to 540 degrees C. The solubility of Rh in digenite and Cu-S melt is very limited at all temperatures.


ISSN: 0008-4476
EISSN: 1499-1276
Coden: CAMIA6
Serial Title: The Canadian Mineralogist
Serial Volume: 45
Serial Issue: 6
Title: The system Cu-Rh-S at 900 degrees , 700 degrees , 540 degrees and 500 degrees c
Affiliation: Danish Technical University, Institute for Geology and Geotechnology, Lyngby, Denmark
Pages: 1535-1542
Published: 200712
Text Language: English
Publisher: Mineralogical Association of Canada, Ottawa, ON, Canada
References: 18
Accession Number: 2008-068240
Categories: Mineralogy of non-silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
Secondary Affiliation: University of Copenhagen, DNK, Denmark
Country of Publication: Canada
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Abstract, copyright, Mineralogical Association of Canada. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 200817
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