1-Butyl-3-methylimidazolium hexafluorophosphate
| 1-Butyl-3-methylimidazolium hexafluorophosphate | |
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1-butyl-3-methylimidazol-3-ium hexafluorophosphate |
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Other names
BMIM-PF6 |
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| Identifiers | |
| CAS number | 174501-64-5 |
| PubChem | 2734174 |
| ChemSpider | 2015930  |
| Jmol-3D images | Image 1 Image 2 |
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| Properties | |
| Molecular formula | C8H15F6N2P |
| Molar mass | 284.18228 |
| Appearance | Light Yellow, Liquid |
| Density | 1.38 g/mL at 20 °C |
 (verify) (what is:  / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
1-Butyl-3-methylimidazolium hexafluorophosphate, also known as BMIM-PF6, is a viscous, colourless, hydrophobic and non-water soluble ionic liquid. Together with 1-butyl-3-methylimidazolium tetrafluoroborate, BMIM-BF4, it is one of the most widely studied ionic liquids and is commercially available from most of the major international suppliers of chemicals. It is known to very slowly decompose in the presence of water.[1]
Contents |
[edit] Preparation
BMIM-PF6 is commercially available. It may be obtained in two steps: BMIM-Cl is synthesized by alkylating 1-methylimidazole with 1-chlorobutane. A metathesis reaction with potassium hexafluorophosphate gives the desired compound; the tetrafluoroborate may be prepared by analogously using potassium tetrafluoroborate.[2]
[edit] Solubility
- Soluble: 1-butyl-3-methylimidazolium tetrafluoroborate, ...
- Non-soluble: diethyl ether, water
[edit] References
- ^ R.P. Swatloski, J.D. Holbrey and R.D. Rogers (2003). "Ionic liquids are not always green: hydrolysis of 1-butyl-3-methylimidazolium hexafluorophosphate". Green Chem. 5 (4): 361–363. doi:10.1039/b304400a.
- ^ Dupont, J., Consorti, C., Suarez, P., de Souza, R. (2004), "Preparation of 1-Butyl-3-methyl imidazolium-based Room Temperature Ionic Liquids", Org. Synth., http://www.orgsyn.org/orgsyn/orgsyn/prepContent.asp?prep=v79p0236; Coll. Vol. 10: 184
[edit] Further reading
- S. Carda-Broch, A. Berthod, D.W. Armstrong, (2003). "Solvent properties of the 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid". Analytical and Bioanalytical Chemistry 375 (2): 191–199. doi:10.1007/s00216-002-1684-1. PMID 12560962.
