Switchable solvents consisting of amidine/alcohol or guanidine/alcohol mixtures

  • Lam Phan
  • , Daniel Chiu
  • , David J. Heldebrant
  • , Hillary Huttenhower
  • , Ejae John
  • , Xiaowang Li
  • , Pamela Pollet
  • , Ruiyao Wang
  • , Charles A. Eckert
  • , Charles L. Liotta
  • , Philip G. Jessop*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

267 Citations (Scopus)

Abstract

Liquids that consist of a mixture of an alcohol and either an amidine or a guanidine have been developed to switch from a low-polarity form to a high-polarity ionic liquid upon treatment with CO2 at atmospheric pressure. Treatment with N2 and/or mild heat (50-60°C) reverses the process. These liquids can be used as switchable solvents to dissolve and then precipitate a solute or to dissolve reagents for a chemical synthesis and then precipitate the product.

Original languageEnglish
Pages (from-to)539-545
Number of pages7
JournalIndustrial and Engineering Chemistry Research
Volume47
Issue number3
DOIs
Publication statusPublished - 6 Feb 2008
Externally publishedYes

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