Quantification of Halide in Ionic Liquids Using Ion Chromatography

Abstract

The determination of chloride impurities in ionic liquids using ion chromatography is described. A wide range of cation-anion combinations may be analyzed using ion chromatography, including water-immiscible ionic liquids. For all ionic liquids studied, the limit of quantification for chloride was found to be below 8 ppm.

Solubility of carbon dioxide and ethane in three ionic liquids based on the bis{(trifluoromethyl)sulfonyl}imide anion

“…The bromide content of this IL sample was determined using ion chromatography (IC) [26] and was found to be below the 5 ppm detection limit. The water content was determined before and after the solubility measurements by volumetric Karl-Fisher titration using a Mettler Toledo DL31 titrator.…”

Thermal Properties of Ionic Liquids and Ionanofluids

“…In all cases, the water mass fraction was found to be less than 0.0002. The halide content of ionic liquids was determined using suppressed ion chromatography as described in (Villagran et al, 2004) and all ionic liquids had a chloride mass fraction of less than 5·10 -6 , unless otherwise stated. The carbon nanotubes used were Baytubes ® C150 HP of Multi-Walled Carbon Nanotubes (MWCNTs) from Bayer Material Science (Germany).…”

Application of ionic liquids in analytical chemistry

“…We do not discuss studies on the separation and the determination of ILs [10][11][12], as this is outside the scope of this review.…”