Abstract
Experimental solubilities are reported for pyrene in ten binary alkane+alcohol solvent mixtures containing either 1-butanol or 2-methyl-1-propanol with hexane, heptane, octane, cyclohexane and methylcyclohexane. Results of these measurements, along with published anthracene and pyrene solubility data, are used to test predictive expressions based upon the mobile order theory. For the 59 systems studied, the best predictive equation was found to predict the observed solubility data to within an overall average deviation of about 3% using numerical values of 125 cm 3 mol −1 and 175 cm 3 mol −1 for the anthracene–alcohol and pyrene–alcohol stability constants, respectively. Alcohol self-association constants and binary interaction parameters were obtained by regressing vapor–liquid equilibria (VLE) data for alkane+alcohol mixtures.
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