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

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Abstract

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.

Also, the possibility to obtain copper sulfides with greater cooper content was investigated.

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Authors and Affiliations

  1. Department of Inorganic Technology and Environmental Protection, Faculty of Applied Chemistry and Materials Science, University ‘Politehnica’ of Bucharest, Bucharest, Romania, 011061, Polizu Street, No. 1–7

    Claudia Maria Simonescu

  2. National Institute for Material Physics, Bucharest-Magurele, Romania, 77125, P.O.Box. Mg-7

    V. S. Teodorescu

  3. Institute of Physical and Chemical ‘Ilie Murgulescu’, Bucharest, Romania, Splaiul Independentei Street, No.202

    Oana Carp & Luminita Patron

  4. Department of Environmental Engineering, University ‘Constantin Brancusi’, Targu-Jiu, Romania, 210152, Genova Street, No. 3

    Camelia Capatina

Authors
  1. Claudia Maria Simonescu
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  2. V. S. Teodorescu
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  3. Oana Carp
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  4. Luminita Patron
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  5. Camelia Capatina
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Correspondence to Claudia Maria Simonescu.

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Simonescu, C.M., Teodorescu, V.S., Carp, O. et al. Thermal behaviour of CuS (covellite) obtained from copper–thiosulfate system. J Therm Anal Calorim 88, 71–76 (2007). https://doi.org/10.1007/s10973-006-8079-z

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