Effect of temperature and alkyl chain length on the physicochemical properties of pyridinium bis(trifluoromethylsulfonyl)imide-based ionic liquids
Densities, refractive indices, viscosities, surface tensions and speeds of sounds were measured and discussed for [Cnpy][[NTf2] (n=2,4,6) and [Cnmpy][[NTf2] (n=2,3,4) as a function of temperature and atmospheric pressure. As expected, all properties decrease with increasing temperature, with viscosi...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Chemical Thermodynamics and Thermal Analysis |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667312622000657 |
| _version_ | 1811198157215760384 |
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| author | Abdullah Aljasmi Adel S. AlJimaz Khaled H.A.E. AlKhaldi Mohammad S. AlTuwaim |
| author_facet | Abdullah Aljasmi Adel S. AlJimaz Khaled H.A.E. AlKhaldi Mohammad S. AlTuwaim |
| author_sort | Abdullah Aljasmi |
| collection | DOAJ |
| description | Densities, refractive indices, viscosities, surface tensions and speeds of sounds were measured and discussed for [Cnpy][[NTf2] (n=2,4,6) and [Cnmpy][[NTf2] (n=2,3,4) as a function of temperature and atmospheric pressure. As expected, all properties decrease with increasing temperature, with viscosity being the property most affected by temperature, while surface tension and refractive index being the properties least affected by temperature. Linear correlation was used to calculate the density, speed of sound, surface tension and refractive index as a function of temperature. The viscosity is correlated using Vogel-Flutcher-Tamman (VFT) equation. From the experimental density data, the coefficients of thermal expansion and the isentropic compressibility coefficients were calculated. The Guggenheim equation was used to calculate the critical temperatures. Moreover, the effect of the alkyl chain length of the investigated ionic liquids on the measured thermophysical properties is discussed. |
| first_indexed | 2024-04-12T01:27:06Z |
| format | Article |
| id | doaj.art-2727a3c964d143aea8d19d7c5779f2c2 |
| institution | Directory Open Access Journal |
| issn | 2667-3126 |
| language | English |
| last_indexed | 2024-04-12T01:27:06Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Thermodynamics and Thermal Analysis |
| spelling | doaj.art-2727a3c964d143aea8d19d7c5779f2c22022-12-22T03:53:36ZengElsevierChemical Thermodynamics and Thermal Analysis2667-31262022-12-018100099Effect of temperature and alkyl chain length on the physicochemical properties of pyridinium bis(trifluoromethylsulfonyl)imide-based ionic liquidsAbdullah Aljasmi0Adel S. AlJimaz1Khaled H.A.E. AlKhaldi2Mohammad S. AlTuwaim3Corresponding author.; Department of Chemical Engineering, College of Technological Studies, P.O. Box 42325, Shuwaikh 70654, KuwaitDepartment of Chemical Engineering, College of Technological Studies, P.O. Box 42325, Shuwaikh 70654, KuwaitDepartment of Chemical Engineering, College of Technological Studies, P.O. Box 42325, Shuwaikh 70654, KuwaitDepartment of Chemical Engineering, College of Technological Studies, P.O. Box 42325, Shuwaikh 70654, KuwaitDensities, refractive indices, viscosities, surface tensions and speeds of sounds were measured and discussed for [Cnpy][[NTf2] (n=2,4,6) and [Cnmpy][[NTf2] (n=2,3,4) as a function of temperature and atmospheric pressure. As expected, all properties decrease with increasing temperature, with viscosity being the property most affected by temperature, while surface tension and refractive index being the properties least affected by temperature. Linear correlation was used to calculate the density, speed of sound, surface tension and refractive index as a function of temperature. The viscosity is correlated using Vogel-Flutcher-Tamman (VFT) equation. From the experimental density data, the coefficients of thermal expansion and the isentropic compressibility coefficients were calculated. The Guggenheim equation was used to calculate the critical temperatures. Moreover, the effect of the alkyl chain length of the investigated ionic liquids on the measured thermophysical properties is discussed.http://www.sciencedirect.com/science/article/pii/S2667312622000657PyridiniumIonic liquidsAlkyl chainDensityViscosityVolumetric properties |
| spellingShingle | Abdullah Aljasmi Adel S. AlJimaz Khaled H.A.E. AlKhaldi Mohammad S. AlTuwaim Effect of temperature and alkyl chain length on the physicochemical properties of pyridinium bis(trifluoromethylsulfonyl)imide-based ionic liquids Chemical Thermodynamics and Thermal Analysis Pyridinium Ionic liquids Alkyl chain Density Viscosity Volumetric properties |
| title | Effect of temperature and alkyl chain length on the physicochemical properties of pyridinium bis(trifluoromethylsulfonyl)imide-based ionic liquids |
| title_full | Effect of temperature and alkyl chain length on the physicochemical properties of pyridinium bis(trifluoromethylsulfonyl)imide-based ionic liquids |
| title_fullStr | Effect of temperature and alkyl chain length on the physicochemical properties of pyridinium bis(trifluoromethylsulfonyl)imide-based ionic liquids |
| title_full_unstemmed | Effect of temperature and alkyl chain length on the physicochemical properties of pyridinium bis(trifluoromethylsulfonyl)imide-based ionic liquids |
| title_short | Effect of temperature and alkyl chain length on the physicochemical properties of pyridinium bis(trifluoromethylsulfonyl)imide-based ionic liquids |
| title_sort | effect of temperature and alkyl chain length on the physicochemical properties of pyridinium bis trifluoromethylsulfonyl imide based ionic liquids |
| topic | Pyridinium Ionic liquids Alkyl chain Density Viscosity Volumetric properties |
| url | http://www.sciencedirect.com/science/article/pii/S2667312622000657 |
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