Solubility of Anthracene in Binary Alkane + Dimethyl Adipate and Alkane + Dibutyl Oxalate Solvent Mixtures

Abstract

Experimental solubilities are reported for anthracene dissolved in three binary mixtures containing dimethyl adipate with cyclohexane, methylcyclohexane and n-heptane, and in six solvent mixtures containing dibutyl oxalate with n-hexane, n-heptane, n-octane, cyclohexane, methylcyclohexane and isooctane at 25°C. Results of these measurements are used to test two mathematical representations based upon the combined Nearly Ideal Binary Solvent (NIBS)/Redlich-Kister equations and Modified Wilson model. For the systems studied, the combined NIBS/Redlich-Kister equation was found to provide the better mathematical representation with deviations between experimental and back-calculated values being on the order of ± 3% or less.

Key Words:

• Anthracene solubilities
• binary solvent mixtures
• mathematical representation of solubility data