Determination of the solubility parameter of ionic liquid 1-hexyl-3-methylimidazolium hexafluorophosphate by inverse gas chromatography / Yali Chen in Industrial & engineering chemistry research, Vol. 51 N° 46 (Novembre 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 46 (Novembre 2012) . - pp. 15293–15298 Titre : Determination of the solubility parameter of ionic liquid 1-hexyl-3-methylimidazolium hexafluorophosphate by inverse gas chromatography Type de document : texte imprimé Auteurs : Yali Chen, Auteur ; Qiang Wang, Auteur ; Zhengfang Zhang, Auteur Année de publication : 2013 Article en page(s) : pp. 15293–15298 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Gas chromatography Ionic liquid Solubility Résumé : In this study, physical and thermodynamic properties of 1-hexyl-3-methylimidazolium hexafluorophosphate ([HMIM]PF6) were investigated by using inverse gas chromatography (IGC). Two groups of solvents with different chemical natures and polarities were used to obtain information about [HMIM]PF6-solvent interactions: chloroform, ethyl acetate, ether, acetone and alkanes. The specific retention volume (Vg0), molar heat of sorption, weight fraction activity coefficient, activity coefficients at infinite dilution, partial molar heat of mixing and Flory–Huggins interaction parameter between [HMIM]PF6 and solvents were determined in the temperature range of 343.15–373.15 K. Also, the solubility parameters of [HMIM]PF6 at infinite dilution were found by plotting the graph of δ12/(RT) – χ1.2∞/V1 versus solubility parameters, δ1, of probes. The results showed that n-C6, n-C7, n-C8, n-C9, ether, and n-butyl alcohol were poor solvents for [HMIM]PF6; chloroform, acetone, and ethyl acetate were favorite ones, while ethanol was moderate solvent for [HMIM]PF6 (close to poor solvent). The solubility parameter of [HMIM]PF6 was determined as 23.28 (J/cm3)0.5 by the extrapolation at 298.15 K. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26679650 [article] Determination of the solubility parameter of ionic liquid 1-hexyl-3-methylimidazolium hexafluorophosphate by inverse gas chromatography [texte imprimé] / Yali Chen, Auteur ; Qiang Wang, Auteur ; Zhengfang Zhang, Auteur . - 2013 . - pp. 15293–15298. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 46 (Novembre 2012) . - pp. 15293–15298 Mots-clés : Gas chromatography Ionic liquid Solubility Résumé : In this study, physical and thermodynamic properties of 1-hexyl-3-methylimidazolium hexafluorophosphate ([HMIM]PF6) were investigated by using inverse gas chromatography (IGC). Two groups of solvents with different chemical natures and polarities were used to obtain information about [HMIM]PF6-solvent interactions: chloroform, ethyl acetate, ether, acetone and alkanes. The specific retention volume (Vg0), molar heat of sorption, weight fraction activity coefficient, activity coefficients at infinite dilution, partial molar heat of mixing and Flory–Huggins interaction parameter between [HMIM]PF6 and solvents were determined in the temperature range of 343.15–373.15 K. Also, the solubility parameters of [HMIM]PF6 at infinite dilution were found by plotting the graph of δ12/(RT) – χ1.2∞/V1 versus solubility parameters, δ1, of probes. The results showed that n-C6, n-C7, n-C8, n-C9, ether, and n-butyl alcohol were poor solvents for [HMIM]PF6; chloroform, acetone, and ethyl acetate were favorite ones, while ethanol was moderate solvent for [HMIM]PF6 (close to poor solvent). The solubility parameter of [HMIM]PF6 was determined as 23.28 (J/cm3)0.5 by the extrapolation at 298.15 K. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26679650

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire