SOLUBILITY OF BENZIL IN BINARY ALKANE PLUS DIBUTYL ETHER SOLVENT MIXTURES - COMPARISON OF PREDICTIVE EXPRESSIONS DERIVED FROM THE NEARLY IDEAL BINARY SOLVENT MODEL

Experimental solubilities are reported for benzil dissolved in six bin ary mixtures containing dibutyl ether with hexane, heptane, octane, cy clohexane, methylcyclohexane, and 2,2,4-trimethylpentane at 25 degrees C. Results of these measurements are compared to the predictions of e quations developed previously for solubility in systems of nonspecific interactions. The mast successful equation in terms of goodness of fi t involved a volume fraction average of the excess Gibbs energies rela tive to the Flory-Huggins model, and predicted the experimental solubi lities in the six systems studied to within an overall average absolut e deviation of 3.4% and with a maximum deviation of 6.0%.