Sublimation Pressures of n-Alkanes from C_(20)H_(42) to C_(35)H_(72) in the Temperature Range 308-348 K

摘要

This paper presents a new predictive method for the sublimation pressures of heavy n-alkanes from C_(20)H_(42) to C_(35)H_(72) in the temperature range 308-348 K. The peculiar behavior of solid n-alkanes in terms of their heats of solid transitions is reviewed briefly. Also, the behavior of heat capacities of the n-alkanes through the solid—solid transitions is discussed, and the relative importance of this behavior is evaluated. Finally, the new expression for the sublimation pressures of n-alkanes is compared with other available correlations.