Formula C8H15F6N2P Appearance Light yellow liquid | Density 1.38 g/cm³ | |
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1-Butyl-3-methylimidazolium hexafluorophosphate, also known as BMIM-PF6, is a viscous, colourless, hydrophobic and non-water-soluble ionic liquid with a melting point of -8 °C. Together with 1-butyl-3-methylimidazolium tetrafluoroborate, BMIM-BF4, it is one of the most widely studied ionic liquids. It is known to very slowly decompose in the presence of water.
![1-Butyl-3-methylimidazolium hexafluorophosphate 1Butyl3methylimidazolium hexafluorophosphate 970 HPLC](https://alchetron.com/cdn/1-butyl-3-methylimidazolium-hexafluorophosphate-1978b8b2-d140-42ff-8b36-168ac487a1c-resize-750.jpg)
Preparation
![1-Butyl-3-methylimidazolium hexafluorophosphate 1Butyl3methylimidazolium hexafluorophosphate Wikipedia](https://alchetron.com/cdn/1-butyl-3-methylimidazolium-hexafluorophosphate-4c7a50bc-36c5-4149-aca4-e4c7db600cb-resize-750.jpg)
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.
![1-Butyl-3-methylimidazolium hexafluorophosphate 1Butyl3methylimidazolium hexafluorophosphate CAS 174501645 SCBT](https://alchetron.com/cdn/1-butyl-3-methylimidazolium-hexafluorophosphate-20f630cb-d93e-4f7f-bc7a-041dd581ca3-resize-750.jpg)
References
1-Butyl-3-methylimidazolium hexafluorophosphate Wikipedia(Text) CC BY-SA