The selection of the most suitable selective solvent for separation processes such as extraction or extractive distillation plays an important role in the economical design. Since the largest deviation from ideality is observed at infinite dilution, limiting activity coefficients (γ ¥ ) provide a useful tool for the optimal choice of the selective solvent. Therefore, activity coefficients at infinite dilution have been measured for 22 solutes (paraffins, olefins, chloroparaffins, aromatics, ketones, ethers, alcohols, and acetates) in fatty alcohols: octadecanol and eicosanol as a solvent. The measurements were carried out with the help of gas-liquid chromatography (GLC) at five and four temperatures, respectively. Furthermore, the observed temperature dependence of limiting activity coefficients is confirmed using excess enthalpy data. To determine the different interactions between the solutes and the solvents, the linear solvation energy relationship (LSER) or "Abraham method" is applied. To verify the application as an entrainer, the selectivity and capacity of the investigated solvents are calculated from experimental activity coefficient data.

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I n the original document (J. Chem. Eng. Data, 2011, 56 (4), 850−858) on pages 851 and 852, the values tabulated in Tables 1 and 2 correspond to natural logarithm of the activity coefficients at infinite dilution (ln γ ∞ ) and not the values of γ ∞ . In consequence Tables 3 and 4 and Figures 2 to 18 given in the manuscript are not correct. The resulting correct tables and figures are reported below. As a consequence some sentences are also corrected in the text.The sentence of page 855 which says in part, "The γ ∞ values are relatively slight (< 1) in the two solvents"; is not correct. The correct sentence is "The γ ∞ values are larger than unity (> 1) in the two solvents".