Solubility data were measured for eight different n-alkanes ranging from tetracosane to tetratetracontane (C24H50-C44H90). Included are: (1) solubility data in toluene for all the n-alkanes studied and (2) solubility data of n-hexatriacontane (C36H74) in several solvent and solvent mixture systems. Illustrated in the data are the effects on solubility of alkane chain length, alkane odd versus even carbon number structures, and solvent chemistry. The measurements were made to provide fundamental equilibrium data. (C) 2004 Elsevier B.V. All rights reserved.