Experimental Study of the Thermal Decomposition Properties of Binary Imidazole Ionic Liquid Mixtures
Ionic liquids (ILs) have a wide range of applications, owing to their negligible vapor pressure, high electrical conductivity, and low melting point. However, the thermal hazards of ILs and their mixtures are also non-negligible. In this study, the thermal hazards of various binary imidazolium ionic...
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| Format: | Article |
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MDPI AG
2022-02-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/4/1357 |
| _version_ | 1797477605655445504 |
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| author | Fan Yang Xin Zhang Yong Pan Hongpeng He Yuqing Ni Gan Wang Juncheng Jiang |
| author_facet | Fan Yang Xin Zhang Yong Pan Hongpeng He Yuqing Ni Gan Wang Juncheng Jiang |
| author_sort | Fan Yang |
| collection | DOAJ |
| description | Ionic liquids (ILs) have a wide range of applications, owing to their negligible vapor pressure, high electrical conductivity, and low melting point. However, the thermal hazards of ILs and their mixtures are also non-negligible. In this study, the thermal hazards of various binary imidazolium ionic liquids (BIIL) mixtures were investigated. The effects of parent salt components and molar ratios on the thermal decomposition temperature (<i>T<sub>d</sub></i>) and flashpoint temperature (<i>T<sub>f</sub></i>) are investigated. It is found that both <i>T<sub>d</sub></i> and <i>T<sub>f</sub></i> increase as the proportion of highly thermally stable components in BIIL mixtures increases. Furthermore, the decomposition process of BIIL mixtures can be divided into two stages. For most molar ratios, the <i>T<sub>f</sub></i> of the BIIL mixtures is in the first stage of thermal decomposition. When the proportion of highly thermally stable components is relatively high, <i>T<sub>f</sub></i> is in the second stage of thermal decomposition. The flammability is attributed to the produced combustible gases during the thermal decomposition process. This work would be reasonably expected to provide some guidance for the safety design and application of IL mixtures for engineering. |
| first_indexed | 2024-03-09T21:21:03Z |
| format | Article |
| id | doaj.art-ac56f140ff7a4342af3236220e8c83c4 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T21:21:03Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-ac56f140ff7a4342af3236220e8c83c42023-11-23T21:22:43ZengMDPI AGMolecules1420-30492022-02-01274135710.3390/molecules27041357Experimental Study of the Thermal Decomposition Properties of Binary Imidazole Ionic Liquid MixturesFan Yang0Xin Zhang1Yong Pan2Hongpeng He3Yuqing Ni4Gan Wang5Juncheng Jiang6College of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, ChinaIonic liquids (ILs) have a wide range of applications, owing to their negligible vapor pressure, high electrical conductivity, and low melting point. However, the thermal hazards of ILs and their mixtures are also non-negligible. In this study, the thermal hazards of various binary imidazolium ionic liquids (BIIL) mixtures were investigated. The effects of parent salt components and molar ratios on the thermal decomposition temperature (<i>T<sub>d</sub></i>) and flashpoint temperature (<i>T<sub>f</sub></i>) are investigated. It is found that both <i>T<sub>d</sub></i> and <i>T<sub>f</sub></i> increase as the proportion of highly thermally stable components in BIIL mixtures increases. Furthermore, the decomposition process of BIIL mixtures can be divided into two stages. For most molar ratios, the <i>T<sub>f</sub></i> of the BIIL mixtures is in the first stage of thermal decomposition. When the proportion of highly thermally stable components is relatively high, <i>T<sub>f</sub></i> is in the second stage of thermal decomposition. The flammability is attributed to the produced combustible gases during the thermal decomposition process. This work would be reasonably expected to provide some guidance for the safety design and application of IL mixtures for engineering.https://www.mdpi.com/1420-3049/27/4/1357binary imidazole ionic liquid mixturesthermal decomposition temperatureflash ignition temperature |
| spellingShingle | Fan Yang Xin Zhang Yong Pan Hongpeng He Yuqing Ni Gan Wang Juncheng Jiang Experimental Study of the Thermal Decomposition Properties of Binary Imidazole Ionic Liquid Mixtures Molecules binary imidazole ionic liquid mixtures thermal decomposition temperature flash ignition temperature |
| title | Experimental Study of the Thermal Decomposition Properties of Binary Imidazole Ionic Liquid Mixtures |
| title_full | Experimental Study of the Thermal Decomposition Properties of Binary Imidazole Ionic Liquid Mixtures |
| title_fullStr | Experimental Study of the Thermal Decomposition Properties of Binary Imidazole Ionic Liquid Mixtures |
| title_full_unstemmed | Experimental Study of the Thermal Decomposition Properties of Binary Imidazole Ionic Liquid Mixtures |
| title_short | Experimental Study of the Thermal Decomposition Properties of Binary Imidazole Ionic Liquid Mixtures |
| title_sort | experimental study of the thermal decomposition properties of binary imidazole ionic liquid mixtures |
| topic | binary imidazole ionic liquid mixtures thermal decomposition temperature flash ignition temperature |
| url | https://www.mdpi.com/1420-3049/27/4/1357 |
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