Abstract
Gas chromatography based activity and partition coefficients are reported for nine solutes, including aliphatic, alicyclic, chlorinated aliphatic, and aromatic solutes, in two mixed stationary phases, (a) N,N-dibutyl-2-ethylhexanamide + N,N-dibutyl-2,2-dimethylbutanamide and (b) N,N-dibutyl-2-ethylhexanamide + dodecanol, in the mole fraction region from 0 to 1, for five temperatures spanning from 298.15 to 338.15 K. The infinite dilution activity coefficients of solutes in mixed solvents can be accurately described by a simple, thermodynamically founded, four-parameter equation, derived from the expression originally reported by G. M. Wilson.
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