Abstract
Solubilities of tetracosane (C 24) in aliphatic alcohols (1-pentanol, 1-hexanol, 1-heptanol, 1-octanol, l-nonanol, 1-decanol, 1-undecanol, 1-dodecanol) have been determined at temperatures ranging from the melting point of the solute to 289 K. Five methods of correlation have been applied: Wilson, simple UNIQUAC, UNIQUAC associated-solution model as well as two modified NRTL equations. The root mean square deviations of the solubility temperatures for all measured data vary from 0.11 K to 2.43 K and depend on the particular equation used. The best solubility correlation has been obtained with the UNIQUAC associated-solution model. In the calculations, the existence of a solid-solid first-order phase transition in tetracosane has also been taken into consideration.
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