Figure 5. Molecular structure of the ionic liquid 1-butyl-3-methylimidazolium hydrogen sulfate used as catalyst for the esterification

From

From Current Science to School – the Facets of Green Chemistry on the Example of Ionic Liquids

Daniel Rauber, Frederik Philippi, Johann Seibert, Johannes Huwer, Harald Natter, Rolf Hempelmann

World Journal of Chemical Education. 2019, 7(2), 153-165 doi:10.12691/wjce-7-2-15