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High Pressure Research
An International Journal
Volume 29, 2009 - Issue 2
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Original Articles

Two triple points in the H2O–H2 system

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Pages 250-253 | Received 07 Sep 2008, Published online: 21 May 2009
 

Abstract

Using a volumetric technique, phase transitions in the H2O–H2 system were investigated in the vicinity of two points of an invariant equilibrium, L+I h+sII and L+sII+C 1, located at 1.07 kbar and−10 °C and at 3.6 kbar and 1 °C, respectively. Liquid water (L), low-pressure hexagonal ice (I h) and high-pressure cubic (sII) and rhombohedral (C 1) clathrate hydrates were in equilibrium with gaseous hydrogen taken in excess.

This paper was presented at the XLVIth European High Pressure Research Group (EHPRG 46) Meeting, Valencia (Spain), 7–12 September, 2008.

Acknowledgements

This work was supported by the Russian Academy of Sciences (the program “Physics and Mechanics of Strongly Compressed Matter”), the Russian Foundation for Basic Research (project no. 08-02-00846) and the Foundation for Support of Russian Science. One of the authors (V.S.E.) thanks the Organising Committee of the 46th EHPRG Conference and the Spanish High Pressure Research Network MALTA-Consolider (Ingenio 2010) for their financial support to attend the Conference.

Notes

This paper was presented at the XLVIth European High Pressure Research Group (EHPRG 46) Meeting, Valencia (Spain), 7–12 September, 2008.

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