Determination and correlation of solubility and solution thermodynamics of 1, 2-diphenylethane in different pure solvents

Qi, Ya bing

Abstract

The correlation of solubility and solution thermodynamics of 1,2- diphenylethane in different pure solvents has been studied. The mole fraction solubilities of 1, 2-diphenylethane in acetone, chloroform, dichloromethane, and ethanol increase with temperature. The mole fraction solubility in acetone, chloroform and dichloromethaneare much higher than that in ethanol and the mole fraction solubilities in chloroform and dichloromethane are higher than that in acetone. The solubility data were well correlated by the modified Apelblat,the semi-empirical Buchowski-Ksiazczak λh equation, and the ideal solution equation.The enthalpy, entropy and apparent free Gibbs energy of solution in different solvents were calculated. The dissolving process of 1,2-diphenylethane was endothermic, entropy-driving and not spontaneous.

Keyword(s)

1, 2-Diphenylethane; Correlation; Solubility; Thermodynamics


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