Solubility of 1,3-Dimethyl-7H-purine-2,6-dione (Theophylline) in Supercritical Carbon Dioxide

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dc.contributor.authorde la Fuente, Juan C.
dc.contributor.authorNunez, Gonzalo
dc.contributor.authordel Valle, Jose M.
dc.date.accessioned2024-01-10T12:42:46Z
dc.date.available2024-01-10T12:42:46Z
dc.date.issued2009
dc.description.abstractThis contribution provides complementary experimental data of solubility (y(2), molar fraction) of solid 1,3-dimethyl-7H-purine-2,6-dione (theophylline) in supercritical CO2 as a function of temperature (313 K <= T <= 333 K) and pressure (10 MPa <= P <= 44 MPa). A static-analytic methodology was used with standard deviations from average solubility measurements of <= 38% and with estimated inherit errors <= 25%. The solubility of theophylline increased with the CO2 density from 0.33.10(-5) mol.mol(-1) at 797.2 kg.m(-3) (313 K, 16 MPa) to 3.3.10(-5) mol.mol(-1) at 890.2 kg.m(-3) (333 K, 40 MPa). The solubility increased with pressure and temperature. Experimental solubilities were correlated with a density-based model with three adjustable parameters, which was valid for solvent densities in the range of (400 to 950) kg.m(-3).
dc.description.funderChilean agency Fondecyt
dc.fechaingreso.objetodigital2024-04-23
dc.format.extent3 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1021/je900099m
dc.identifier.issn0021-9568
dc.identifier.urihttps://doi.org/10.1021/je900099m
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77540
dc.identifier.wosidWOS:000271579800010
dc.information.autorucIngeniería;Del Valle JM;S/I;57259
dc.issue.numero11
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final3036
dc.pagina.inicio3034
dc.publisherAMER CHEMICAL SOC
dc.revistaJOURNAL OF CHEMICAL AND ENGINEERING DATA
dc.rightsacceso restringido
dc.subjectLIQUID-CHROMATOGRAPHY
dc.subjectPHASE-BEHAVIOR
dc.subjectTHEOBROMINE
dc.subjectCAFFEINE
dc.subjectCO2
dc.titleSolubility of 1,3-Dimethyl-7H-purine-2,6-dione (Theophylline) in Supercritical Carbon Dioxide
dc.typeartículo
dc.volumen54
sipa.codpersvinculados57259
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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