Yalkowsky and Rubino (1985) 14 have observed roughly linear behavior for logarithmic solubility in mixed solvents when
Question:
Yalkowsky and Rubino (1985)14 have observed roughly linear behavior for logarithmic solubility in mixed solvents when plotted as volume fraction of the solvent/cosolvent. That is, log(xi) = Φ1'log(xi,1) + Φ2'log(xi,2) where xi,j is the solubility in the jth pure solvent and Φi' is the volume fraction on a solute-free basis; for example, ΦE' = ΦE/(ΦE+ΦW). Use the SSCED model to make your best estimates of the solubility of salicylic acid at 318 K in a range of mixtures with ethanol/water mole fraction ratios of 3/1, 1/1, and 1/3. Plot your results as log10(xacid) versus ΦE'. Include the experimental results and the guideline of Yalkowsky and Rubino. Comment on whether the SSCED model is consistent with the observation of Yalkowsky and Rubino.
Step by Step Answer:
Introductory Chemical Engineering Thermodynamics
ISBN: 9780136068549
2nd Edition
Authors: J. Elliott, Carl Lira