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Journal of inclusion phenomena

, Volume 5, Issue 2, pp 203–210 | Cite as

Clathrate formation in water-tetraalkyl ammonium iodide systems at high pressure

  • Yu. A. Dyadin
  • F. V. Zhurko
  • E. Ya. Aladko
  • Yu. M. Zelenin
  • L. A. Gaponenko
Inclusion Compounds

Abstract

The phase diagrams of aqueous binary systems with PrBu3NI(I), Bu4NI(II), i-AmBu3NI(III) and i-Am4NI(IV) were studied at atmospheric and high pressures by DTA method. In systems III-H2O and IV-H2O at atmospheric pressure we observed polyhydrates melting incongruently at 7.1 and 14.7, correspondingly. In systems I-H2O and II-H2O hydrates form at higher pressure only, there are PrBu3NI (15–25) H2O at P≧0.13 kbar, Bu4NI (25–35) H2O at P≧0.4 kbar. In water systems with II–IV at pressure 1.2, 1.4 and 0.26 kbar correspondingly polyhydrates with smaller hydrate number form. Formation of hydrates in solution in the II-H2O system does not occur at pressure greater than 7 kbar. The summarized P, T, X-phase diagram is discussed.

Keywords

Ammonium Hydrate Organic Chemistry Phase Diagram High Pressure 
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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Copyright information

© D. Reidel Publishing Company 1987

Authors and Affiliations

  • Yu. A. Dyadin
    • 1
  • F. V. Zhurko
    • 1
  • E. Ya. Aladko
    • 1
  • Yu. M. Zelenin
    • 1
  • L. A. Gaponenko
    • 1
  1. 1.Siberian BranchInstitute of Inorganic Chemistry of the USSR Academy of SciencesNovosibirskUSSR

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