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Dissociation Behavior of Clathrate Hydrates to Ice and Dependence on Guest Molecules

Authors

  • Satoshi Takeya Dr.,

    1. Steacie Institute for Molecular Sciences, National Research Council of Canada, 100 Sussex Dr., Ottawa, ON, K1A0R6, Canada, Fax: (+1) 613-998-7833
    2. Permanent address: Research Institute of Instrumentation Frontier, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, Higashi 1-1-1, Tsukuba 305-8565, Japan
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  • John A. Ripmeester Dr.

    1. Steacie Institute for Molecular Sciences, National Research Council of Canada, 100 Sussex Dr., Ottawa, ON, K1A0R6, Canada, Fax: (+1) 613-998-7833
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  • We thank Drs. M. Sergey, H. Lu, K. Udachin, and D. D. Klug of NRC for their discussions and assistance on sample synthesis. S.T. also thanks Drs. R. Ohmura of Keio University and J. Nagao of AIST for their discussions.

Abstract

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Self-preservation: The existence of gas hydrates (see picture) outside their stability zone for prolonged periods is shown to depend on the interaction strength between guest molecules (red) and water (blue), as reflected by the dissociation pressures at 273 K.

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