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https://hdl.handle.net/10316/10271
Título: | PρT Measurements of Imidazolium-Based Ionic Liquids | Autor: | Gardas, Ramesh L. Freire, Mara G. Carvalho, Pedro J. Marrucho, Isabel M. Fonseca, Isabel M. A. Ferreira, Abel G. M. Coutinho, João A. P. |
Data: | 13-Set-2007 | Editora: | American Chemical Society | Citação: | Journal of Chemical & Engineering Data. 52:5 (2007) 1881-1888 | Resumo: | Experimental density measurements are reported, and the derived thermodynamic properties, such as the isothermal compressibility, the isobaric expansivity, and the thermal pressure coefficient are presented as Supporting Information for several imidazolium-based ionic liquids (ILs), namely, 1-ethyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide [C2mim][NTf2], 1-heptyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide [C7mim][NTf2], 1-octyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide [C8mim][NTf2], 1-ethyl-3-methyl-imidazolium tetrafluoroborate [C2mim][BF4], and 1-butyl-3-methyl-imidazolium tricyanomethane [C4mim][C(CN)3] in the pressure (0.10 < p/MPa < 30.00) and temperature (293.15 < T/K < 393.15) domains. These ILs were chosen to provide an understanding of the influence of the cation alkyl chain length and the anion influence on the properties under study. Experimental densities are correlated with the Tait equation with an average absolute deviation (AAD) less than 0.04 %. Experimental densities are in good agreement with the densities obtained by some recent predictive methods proposed in the literature. | URI: | https://hdl.handle.net/10316/10271 | ISSN: | 0021-9568 | DOI: | 10.1021/je700205n | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Eng.Química - Artigos em Revistas Internacionais |
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Ficheiro | Descrição | Tamanho | Formato | |
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Measurements of Imidazolium-Based.pdf | 206.21 kB | Adobe PDF | Ver/Abrir |
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