HEATS OF MIXING OF NON-ELECTROLYTE SOLUTIONS. I. ETHANOL + BENZENE AND METHANOL + BENZENE1,2

A calorimeter suitable for measuring heats of mixing of fluorocarbon + hydrocarbon mixtures is described; it is similar to that of Adcock and McGlashan but uses a thermistor as the temperature sensitive element. In testing the calorimeter a discrepancy between the measurements and the published data for the system ethanol + benzene at 45 °C was observed; the new results were confirmed by new measurements by the original workers. Finally, the new data on ethanol + benzene at 45 °C and methanol + benzene at 25 and 45 °C correlate well with the available data for other alcohol + benzene systems.