2008
DOI: 10.1021/je800224k
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High-Pressure Densities of 1-Alkyl-3-methylimidazolium Hexafluorophosphates and 1-Alkyl-3-methylimidazolium Tetrafluoroborates at Temperatures from (313 to 473) K and at Pressures up to 200 MPa

Abstract: Pure component pressure-volume-temperature (pVT) data for five imidazolium-based ionic liquids, 1-ethyl-were measured with a bellows type apparatus. High-pressure densities of ionic liquids showed smooth trends with temperature and pressure variations except for [emim][PF 6 ] which exhibited a solid phase transition at temperatures below 352.7 K and which solidified at 100 MPa at 352.7 K. Solid densities were measured and were about 6.3 % higher than those of the liquid. Isothermal compressibilities and therma… Show more

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Cited by 133 publications
(115 citation statements)
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“…For PF 6 -imidazolium-based ILs, the model prediction agrees well with the experimental data determined by the research group of Smith at pressures up to 2000 bar [35,57]. However, at high pressures the data from other sources is lower than the model prediction as well as the experimental data of Smith [35,57].…”
Section: Il-density Prediction Up To 3000 Barsupporting
confidence: 82%
See 1 more Smart Citation
“…For PF 6 -imidazolium-based ILs, the model prediction agrees well with the experimental data determined by the research group of Smith at pressures up to 2000 bar [35,57]. However, at high pressures the data from other sources is lower than the model prediction as well as the experimental data of Smith [35,57].…”
Section: Il-density Prediction Up To 3000 Barsupporting
confidence: 82%
“…However, at high pressures the data from other sources is lower than the model prediction as well as the experimental data of Smith [35,57]. For example, for [C 4 mim][PF 6 ] experimental data exists from three sources, namely Gu and Brennecke [58], Smith's group [57], and Harris et al [59].…”
Section: Il-density Prediction Up To 3000 Barmentioning
confidence: 99%
“…1 as a function of temperature. , Seddon et al[24]; , Sanmamed et al[25]; ♦, Muhammad et al[26]; +, Taguchi et al[27]; , Stoppa et al[28]; , Safarov and Hassel[29]; and •, this study…”
mentioning
confidence: 58%
“…The presented models require input data for their use that are critical properties, molecular weight and acentric factor that are available in the literature [1,13] and also in Table 1. Furthermore, in order to evaluate the degree of reliability of the presented models, they are also compared with AK, GC equation and experimental data [14][15][16][17][18][19][20][21][22][23][24][25][26]. Table 3.…”
Section: Resultsmentioning
confidence: 99%