Water and aqueous solutions can behave strangely under pressure. Experiments carried out at the GFZ German Research Centre for Geosciences using Raman spectroscopy and a diamond anvil cell showed that magnesium sulfate dissolved in water was separated less than expected in magnesium and sulfate ions above a pressure of 0.2 Gigapascal, which equals 2,000 times the normal air pressure. Moreover, ion pairing even increased with pressure above about 0.5 Gigapascal.
Water and aqueous solutions can behave strangely under pressure. Experiments carried out at the GFZ German Research Centre for Geosciences using Raman spectroscopy and a diamond anvil cell showed that magnesium sulfate dissolved in water was separated less than expected in magnesium and sulfate ions above a pressure of 0.2 Gigapascal, which equals 2,000 times the normal air pressure. Moreover, ion pairing even increased with pressure above about 0.5 Gigapascal.
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