Preparation and characterization of lanthanum carbonate hydroxide

J. Sun, T. Kyotani, A. Tomita

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23 Citations (Scopus)

Abstract

Two polymorphs of LaCO3OH were prepared from either La2(CO3)3 or LaBr(OH)2 at an ambient pressure. The first one was the same as reported before by several workers who prepared it by the hydrothermal technique. The second one is a new polymorph of LaCO3OH. The infrared spectra and thermogravimetric curves of these two polymorphs were determined and compared. Its crystal data were determined by X-ray powder diffraction: orthorhombic, a = 5.033(3)Å, b = 8.598(5) Å, c = 7.401(3) Å. All data support that the structure of this new modification is similar to that of ancylite.

Original languageEnglish
Pages (from-to)94-99
Number of pages6
JournalJournal of Solid State Chemistry
Volume65
Issue number1
DOIs
Publication statusPublished - 1986 Nov 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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