Solubilities of the highly soluble gases, propane and butane, in normal paraffin and polar solvents

The solubility of highly soluble gases in both polar and non‐polar solvents has been found to approach a mole fraction of unity as the solution temperature is reduced toward the normal boiling point of the dissolved gas. Solubilities of all gases in the polar solvents chlorobenzene, normal butanol and acetone, tend toward a common reference solubility for each solvent as the temperature is increased toward the solvent critical temperature. Solubilities of propane as measured in this work are reported at 0°C, 25°C and 50°C in chlorobenzene, butanol and acetone and at 25°C in hexane and hexadecane, along with solubilities of butane at 5°C, 25°C and 50°C in hexane, heptane, octane, dodecane, hexadecane and butanol. These data, along with those from literature sources, have been utilized in formulating the above generalizations.