Thermal behaviour of CuS (covellite) obtained from copper-thiosulfate system

Thermal behaviour of CuS (covellite) obtained from the Cu(CH3COO)2*H2O and Na2S2O3*5H2O system, working at different molar ratio (1:6 and 1:4) in presence/absence of NH4VO3, was studied. It was established that the presence of vanadium in the system induces a densification of CuS nodules, but do not...

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Published inJournal of thermal analysis and calorimetry Vol. 88; no. 1; pp. 71 - 76
Main Authors SIMONESCU, Claudia Maria, TEODORESCU, V. S, CARP, Oana, PATRON, Luminita, CAPATINA, Camelia
Format Conference Proceeding Journal Article
LanguageEnglish
Published Dordrecht Springer 01.04.2007
Subjects
Chemistry
Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...)
Exact sciences and technology
Inorganic chemistry and origins of life
Preparations and properties
Sulfides
Thiosulfates
thermal oxidation
Copper sulfide
Thermogravimetry
Oxidation
Thermal analysis
SAED
Minerals
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Summary:Thermal behaviour of CuS (covellite) obtained from the Cu(CH3COO)2*H2O and Na2S2O3*5H2O system, working at different molar ratio (1:6 and 1:4) in presence/absence of NH4VO3, was studied. It was established that the presence of vanadium in the system induces a densification of CuS nodules, but do not change the hexagonal CuS structure. It has an important influence in thermal behaviour of copper sulfide CuS obtained also. The morphological characteristics of CuS play an important role in the thermal stability and the stoichiometry of the thermal decompositions.
Bibliography:SourceType-Scholarly Journals-2
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ObjectType-Conference Paper-1
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SourceType-Conference Papers & Proceedings-1
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ISSN:1388-6150
1588-2926
1572-8943
DOI:10.1007/s10973-006-8079-z