%0 Journal Article
%T Determination of solubility parameters and thermodynamic properties in hydrocarbon-solvent systems by gas chromatography
%A D¨ªaz
%A E.
%A Cazurro
%A A.
%A Ord¨®£¿ez
%A S.
%A Vega
%A A.
%A Coca
%A J.
%J Brazilian Journal of Chemical Engineering
%D 2007
%I Brazilian Society of Chemical Engineering
%R 10.1590/S0104-66322007000200014
%X gas chromatography used to calculate the specific retention volume of several hydrocarbons in different chromatographic liquid phases (squalane, carbowax-400, carbowax-1500, carbowax-4000, amine-220, dinonyl phthalate, tributyl phosphate and trixylenyl phosphate). some thermodynamic parameters, such as enthalpy of sorption and flory-huggins parameters relating the interaction between liquid phases and solutes, were also calculated from the determined retention volumes. liquid phase solubility parameters of squalane, carbowax-400, carbowax-1500 and carbowax-4000 at 80 oc as well as the polar and apolar components were calculated too. a new model was proposed to correlate polar contribution to the solubility parameter of a liquid phase with the specific retention volume of a solute in this liquid phase.
%K gas chromatography
%K solubility parameter
%K specific retention volume
%K polar component
%K flory-huggins interaction parameters.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0104-66322007000200014&lng=en&nrm=iso&tlng=en