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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Isothermal TGA curves of five ionic liquids at 240 °C (a), 250 °C (b), 260 °C (c) and 270 °C (d). ([Emmim][NO3], [Bmmim][NO3], [Hmmim][NO3], [Ommim][NO3] and [Dmmim][NO3] are represented by black, red, blue, green and purple curves, respectively).