Fig. 5. Estimated minimum freezing pressures of the experimental solutions relative to various phase boundaries for water. These pressures are inferred from the disappearance of liquid-like NMR behavior. Curves for Ice-V and Ice-VI were constructed from Wagner et al. (1994). The curve for metastable ice, labeled ‘New Ice’ was reproduced from Whittaker et al. (1998). The curves describing the salt-effected freezing of NaCl solutions are shown as various lines labeled: ‘4.0 m’, ‘2.5 m’ and ‘1.0 m’ (from Journaux et al., 2013). A sample of 1.0 m LaCl3 showed liquid-like NMR spectra all the way to 1.86 GPa and the final pressure is shown as an ‘ ’.
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