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Journal of Structural Chemistry

, Volume 46, Supplement 1, pp S58–S64 | Cite as

Clathrate hydrates of hexagonal structure III at high pressures: Structures and phase diagrams

  • É. G. Larionov
  • E. Ya. Aladko
  • F. V. Zhurko
  • A. Yu. Likhacheva
  • A. I. Ancharov
  • M. A. Sheromov
  • A. V. Kurnosov
  • A. Yu. Manakov
  • S. V. Goryainov
Article

Abstract

It was shown in this work that the clathrate hydrates of Hexagonal Structure III, formed in the ternary systems 1-methylpiperazine-help gas-water and iso-amyl alcohol-help gas-water are stable in a wide range of pressures. The decomposition curves of these hydrates were studied for the first time up to the pressures 1 GPa. Ar, Kr, Xe and CH4 were utilized as the help gases. In a number of the systems studied, high pressure phases were revealed that presumably form due to the distortion of the corresponding low pressure hydrate structures.

Keywords

clathrate hydrates high pressure phase diagrams methylpiperazine iso-amyl alcohol double hydrates Hexagonal Structure III 

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Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • É. G. Larionov
    • 1
  • E. Ya. Aladko
    • 1
  • F. V. Zhurko
    • 1
  • A. Yu. Likhacheva
    • 2
  • A. I. Ancharov
    • 3
  • M. A. Sheromov
    • 4
  • A. V. Kurnosov
    • 1
  • A. Yu. Manakov
    • 1
  • S. V. Goryainov
    • 2
  1. 1.Nikolaev Institute of Inorganic Chemistry, Siberian DivisionRussian Academy of SciencesNovosibirsk
  2. 2.Institute of Mineralogy and Petrography, Siberian DivisionRussian Academy of SciencesNovosibirsk
  3. 3.Institute of Solid State Chemistry and Mechanochemistry, Siberian DivisionRussian Academy of SciencesNovosibirsk
  4. 4.Budker Institute of Nuclear Physics, Siberian DivisionRussian Academy of SciencesNovosibirsk

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