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Rate of coprecipitation of cations with sulfides

Communication 3. Systems HgS-Ga2S3 and CdS-Ga2S3
  • N. A. Rudnev
  • G. I. Malofeeva
  • A. A. Loginov
Inorganic and Analytical Chemistry
  • 26 Downloads

Conclusions

  1. 1.

    A study of the kinetics of the coprecipitation of Ga3+ with HgS and the purification of this sulfide from gallium indicated that the process of coprecipitation is caused by the transition of HgS from the cubic to the hexagonal modification, differing from Ga2S3.

     
  2. 2.

    The presence of gallium in HgS accelerates its conversion from one modification to another.

     
  3. 3.

    Recrystallization of HgS is observed in nitric acid and is absent in hydrochloric acid medium as a result of the formation of the complex ion [HgCl3].

     
  4. 4.

    In the aging of CdS, its purification from coprecipitated gallium in the presence of HCl or H2SO4 is not observed as a result of the absence of polymorphic transformations for this sulfide.

     

Keywords

Purification Sulfide Hexagonal Recrystallization H2SO4 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature cited

  1. 1.
    N.A. Rudnev and G. I. Malofeeva, ZhAKh,21, 521 (1966).Google Scholar
  2. 2.
    N.A. Rudnev and G. I. Malofeeva, ZhAKh,21, 1161 (1966).Google Scholar
  3. 3.
    N.A. Rudnev, A. A. Loginov, and G. I. Malofeeva, ZhAKh,22, 829 (1967).Google Scholar
  4. 4.
    N. A. Rudnev and A. A. Mazur, ZhAKh,12, 433 (1957).Google Scholar
  5. 5.
    Minerals (Handbook) [in Russian], Vol. 1, Izd-vo AN SSSR (1960), pp. 202, 213.Google Scholar
  6. 6.
    G. B. Bokii, Crystal Chemistry [in Russian], Izd-vo MGU (1960), p. 164.Google Scholar

Copyright information

© Consultants Bureau 1969

Authors and Affiliations

  • N. A. Rudnev
    • 1
  • G. I. Malofeeva
    • 1
  • A. A. Loginov
    • 1
  1. 1.V. I. Vernadskii Institute of Geochemistry and Analytical ChemistryAcademy of Sciences of the USSRUSSR

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