A simple colorimetric method for the quality control of 1-alkyl-3-methylimidazolium ionic liquid precursors
- 1 January 2001
- journal article
- Published by Royal Society of Chemistry (RSC) in Green Chemistry
- Vol. 3 (1) , 33-36
- https://doi.org/10.1039/b009459p
Abstract
A simple colorimetric method to monitor the production of ionic liquid precursors is developed, which is based on the determination of 1-methylimidazole with copper(II) chloride. The synthesis of 1-ethyl-3-methylimidazolium chloride, an industrially important ionic liquid precursor, can be followed and the purity of the final product can be readily assessed in a quick and convenient manner.Keywords
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