Isothermal solubility in supercritical carbon dioxide of solid derivatives of 2,3-dichloronaphthalene-1,4-dione (dichlone): 2-(Benzylamino)-3-chloronaphthalene-1,4-dione and 2-chloro-3-(phenethylamino)naphthalene-1,4-dione

JOURNAL OF SUPERCRITICAL FLUIDS

dc.creatorZacconi, Flavia C
dc.creatorCabrera-Palacios, Adolfo Luis
dc.creatorOrdoñez-Retamales, Francisco
dc.creatorDel Valle-Lladser, José Manuel
dc.date2021-08-23T22:52:01Z
dc.date2022-07-08T20:31:27Z
dc.date2021-08-23T22:52:01Z
dc.date2022-07-08T20:31:27Z
dc.date2017
dc.date.accessioned2023-08-22T07:00:11Z
dc.date.available2023-08-22T07:00:11Z
dc.identifier1150822
dc.identifier1150822
dc.identifierhttps://hdl.handle.net/10533/250880
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8330202
dc.descriptionTwo solid derivatives of dichlone (2,3-dichloronaphthalene-1,4-dione), 2-(benzylamino)-3chloronaphthalene-1,4-dione and 2-chloro-3-(phenethylamino)naphthalene-1,4-dione were synthetized by replacing the chlorine atom with the amine substituent by means of a substitution reaction, with a purity grade of 98% mol mol(-1). The solubility expressed as molar fraction of each solid derivative in the supercritical carbon dioxide rich-phase was measured at (313, 323 and 333) K and pressures ranged from (8.59 to 32.51)MPa, using a recirculation method with direct determination of the solubility in a high performance liquid chromatography. Results indicated that the measured solubility ranges were between (23.10(-6) and 114.10(-6)) mol mol(-1) for solid 2-(benzylamino)-3-chloronaphthalene-1,4-dione. For the second solid derivative, 2-chloro-3(phenethylamino)naphthalene-1,4-dione measured solubilities were between (57.10(-6) and 161.10(-6)) mol mol-1. Experimental measured solubility values were analyzed by using a procedure that included the estimation of the combined expanded uncertainty for each solubility data point and the evaluation of the thermodynamic consistency utilizing a test based on the Gibbs-Duhem equation. In addition, the self-consistency was verifying by correlating the experimental solubility data with a semi-empirical model as a function of temperature, pressure and pure carbon dioxide density. (C) 2016 Elsevier B.V. All rights reserved.
dc.descriptionRegular 2015
dc.descriptionFONDECYT
dc.descriptionFONDECYT
dc.languageeng
dc.relationhandle/10533/111557
dc.relationhandle/10533/111541
dc.relationhandle/10533/108045
dc.relationhttps://doi.org/10.1016/j.supflu.2016.09.014
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Chile
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/
dc.rightsinfo:eu-repo/semantics/article
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleIsothermal solubility in supercritical carbon dioxide of solid derivatives of 2,3-dichloronaphthalene-1,4-dione (dichlone): 2-(Benzylamino)-3-chloronaphthalene-1,4-dione and 2-chloro-3-(phenethylamino)naphthalene-1,4-dione
dc.titleJOURNAL OF SUPERCRITICAL FLUIDS
dc.typeArticulo
dc.typeinfo:eu-repo/semantics/publishedVersion


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