What are the differences between carbon dioxide solubility (miscibility, reaction) in liquid water when in gaseous (<38 bar) and liquid (>38 bar) phase? The temperature in my experiments is usually between 0 and 5°C. The stirring speed is around 500 rpm. Is the solubility given apart from pressure and temperature by the co2-water interface? Is there more phase - interface for the reaction between water and CO2 in the gaseous phase? According to Henry's law for real gases (including a Poynting correction), the solubility should rise with the fugacity of the vapor. How is it however, when the carbon dioxide is liquid? More CO2 should dissolve at higher pressures (CO2 in liquid phase), however the liquid CO2 - liquid water interface should be harder to achieve than the gaseous CO2-liquid water interface. Thank you very much.