The solubilities of hydrogen and some light hydrocarbons in n-hexane, toluene, and 1,2-dichloroethane at pressures of 1 atm. or less and temperatures of -23°to 25°C. were determined. The data were compared with published values, and discrepancies for hydrogen in 1,2-dichloroethane and for ethylene in toluene in the existing literature resolved. Relevant vapor pressures of the solvents were also measured.The SOLUBILITIES of hydrogen, ethylene, ethane, and propane in binary systems with toluene, as well as the solubilities of hydrogen and ethylene in n-hexane and 1,2-dichloroethane, are reported here. Some of the data are new, whereas others resolve discrepancies in existing literature data. Some new vapor pressure data for 1,2-dichloroethane were also obtained. EXPERIMENTALApparatus and Procedure for Measuring Solubilities. Two

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