Vapor and liquid equilibrium compositions have been measured for the hexane + tetracosane and hexane + hexatriacontane systems at temperatures from 473.0 K to 622.9 K and pressures from 6.2 bar to 64.5 bar. A continuous-flow apparatus was used so that the low wax concentrations in the vapor phase could be accurately measured. Mixture critical pressures and compositions were also measured. The effects of chain length, branching, and substituent groups on the phase behavior of binary systems containing hexane + a long-chain alkane are summarized in the form of a pressure versus temperature projection.
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