Double Gas Hydrates at High Pressures: The Highest Decomposition Temperatures

Abstract

CS‐II double clathrate hydrates of tetrahydrofuran, CHCl3, CCl4, SF6, and xenon as a “help gas” keep their structures in the pressure interval 1215,000 bar. Decomposition temperatures of these hydrates rise monotonically in the pressure interval under consideration. The decomposition temperature of the double clathrate hydrate of SF 6 and xenon reaches 129.48C at 14.8 kbar.