Abstract
Ionic liquids are currently being used in combination with supercritical fluids for catalytic reactions due to the ease of extraction of reaction products by fluids from such bi-phasic systems. In this investigation we report interesting chemistry involving a simple salt hydrate, tetramethylammonium fluoride tetrahydrate, [(CH3)4N]F·4H2O, as a neat melt and dissolved in methanol in contact with supercritical and subcritical CO2. This hydrate is proposed as a simulant for more complex ionic liquids, to investigate any potential secondary reaction chemistry in these solvent systems with carbon dioxide. Evidence is presented for the formation of methylcarbonate, CH3O(C=O)O-, and fluoromethane, CH3F, in solution when the salt hydrate is in contact with methanol and CO2.
Original language | English |
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Pages (from-to) | 257-263 |
Number of pages | 7 |
Journal | Journal of Supercritical Fluids |
Volume | 29 |
Issue number | 3 |
DOIs | |
Publication status | Published - May 1 2004 |
Keywords
- High-pressure NMR
- Ionic liquid
- Methylcarbonate
- Salt hydrate
- Supercritical fluids
ASJC Scopus subject areas
- Chemical Engineering(all)
- Condensed Matter Physics
- Physical and Theoretical Chemistry