The valence of cerium in synthetic and natural cerium aluminates and silicates

Part 2. Cerium silicates
  • A. I. Leonov
Inorganic and Analytical Chemistry
Received:
  • 36 Downloads

Summary

  1. 1.

    We have synthesized solid solutions in the systems Ce2O3·2SiO2-Nd2O3·2SiO2 and Ce2O3·2SiO2-La2O3·2SiO2.

     
  2. 2.

    We have found the temperature limits for the existence of limited solid solutions (xCe2O3·2SiO2, yLn2O3 ·2SiO2) in an oxidizing atmosphere (in air). In a reducing atmosphere (H2, CO) continuous solid solutions form in these systems.

     
  3. 3.

    We have synthesized the oxyorthosilicate of cerium Ce2O3·SiO2 in a reducing atmosphere and its solid solution with oxyorthosilicates of rare earths of the lanthanum subgroup and calcium of composition: [(0.5 Ce, 0.2 La, 0.2 Nd, 0.1 Pr)2O3·SiO2 (3CaO·SiO2)].

     
  4. 4.

    In the synthetic ceftosil mineral cerium is in the trivalent state.

     

Keywords

Calcium Aluminate Atmosphere SiO2 Silicate 
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.
This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature cited

  1. 1.
    A. G. Betekhtin, Mineralogy [In Russian], Gosgeolizdat, Moscow (1950).Google Scholar
  2. 2.
    A. I. Leonov, V. S. Rudenko, and É. K. Keler, Izv. AN SSSR, Otd. khim. n.1962 (1926).Google Scholar
  3. 3.
    A. V. Rudneva and T. Ya. Malysheva, Dokl. AN SSSR,136, 191 (1961).Google Scholar
  4. 4.
    I. A. Bondar', F. Ya. Galakhov, and N. A. Toropov, Izv. AN SSSR, Otd. khim. n.,1962, 377.Google Scholar
  5. 5.
    S. J. Schneider and R. S. Roth, J. Res. Nat. Bur. Standards,64A, No. 4, 317 (1960).Google Scholar

Copyright information

© Consultants Bureau Enterprises, Inc. 1964

Authors and Affiliations

  • A. I. Leonov
    • 1
  1. 1.Institute of Silicate Chemistry of the Academy of Sciences of the USSRUSSR

Personalised recommendations