Fig. 5: Summary of the phases observed in the oxygen–water system. | Communications Chemistry

Fig. 5: Summary of the phases observed in the oxygen–water system.

From: Implications of high-pressure oxygen hydrates on radiolytic oxygen in Jovian icy moons

Fig. 5: Summary of the phases observed in the oxygen–water system.The alternative text for this image may have been generated using AI.

The decomposition curve of CS-II oxygen clathrate is shown with one sigma error bar. The gray line shows the melt curve of ice62. CS-II oxygen clathrate is stable to higher temperatures than ice VI. Insets show photographs of the sample before (left) and after (right) thermal decomposition showing bubbles of O2 sinking in liquid water with 200 μm field of view. Crosses at low pressure are decomposition data from Van Cleef et al.9,10. Amorphization at 66 K occurs between 1.4 and 2.3 GPa, indicated by the shaded region.

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