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Vapor−Liquid equilibria for two binary mixtures at elevated pressures were determined by a novel technique of density measurement. In this investigation using two high-pressure densitometers, phase diagrams for carbon dioxide + ethanol and carbon dioxide + acetone mixtures were established at five temperatures and pressures up to 14.39 MPa. Solubilities of carbon dioxide in both ethanol and acetone were found to increase with applied pressure but decreased with increasing temperature. The solubility for carbon dioxide in acetone was found to be greater than that of carbon dioxide in ethanol.

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