Solubility of acetone and isopropyl ether in compressed nitrogen, methane, and carbon dioxide

Abstract

Little fundamental information exists concerning the interaction between a small nonpolar molecule and a large polar one. Measuring the second virial cross-coefficient, B/sub 12/, which is directly related to the intermolecular potential, helps obtain this information. Experimental measurements that yield B/sub 12/ provide the fundamental information needed to calculate solvent losses in an absorption gas-purification process operating at high pressures. The University of California measured the vapor-phase solubilities of acetone and isopropyl either in compressed nitrogen, methane, and carbon dioxide at -58/sup 0/ to +122/sup 0/F and 246-913 psi. These experimental solubilities, when reduced, yielded the second virial cross-coefficients. The potential-energy-function fits were good for the nitrogen- and the methane-containing binary systems; the results for the carbon dioxide-containing binaries were less reliable.