Article ID Journal Published Year Pages File Type
217510 The Journal of Chemical Thermodynamics 2006 13 Pages PDF
Abstract

Vapour pressures and the molar enthalpies of vaporization ΔlgHm of the linear alkyl-benzenes C6H5CnH2n + 1 with the alkyl chain length n = 5, 7, 10, and 11 have been determined by the transpiration method. Kovat’s indices of the linear and branched alkyl-benzenes C1 to C16 were collected from the available literature. A linear correlation of enthalpies of vaporization ΔlgHm at T = 298.15 K of the alkyl-benzenes with the number of carbon atoms, as well as with the Kovat’s indices on the non-polar GC columns has been found. A simple GC-correlation approach for correlation and accurate predictions of vapour pressures and vaporization enthalpies of mono- and poly-alkyl-substituted benzenes has been suggested.

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Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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