Solubility of H2S and CO2 in imidazolium-based ionic liquids with bis(2-ethylhexyl) sulfosuccinate anion was written by Akhmetshina, Alsu I.;Petukhov, Anton N.;Gumerova, Olesya R.;Vorotyntsev, Andrey V.;Nyuchev, Alexander V.;Vorotyntsev, Ilya V.. And the article was included in Journal of Chemical Thermodynamics in 2019.Electric Literature of C4H7ClN2 This article mentions the following:
Herein, we studied the absorption of H2S and CO2 in 1-methylimidazolium bis(2-ethylhexyl) sulfosuccinate ([mim][doc]) and 1-buthyl-3-methylimidazolium bis(2-ethylhexyl) sulfosuccinate ([bmim][doc]) at various temperatures and partial gas pressures. The choice of the [doc] anion was determined by the ability of bulky moieties along with the polar functional groups to enhance the solubility of acidic gases, as confirmed during the volumetric measurements of gases solubility It was shown that the protic cation presence determines a significant reduction of the CO2 and H2S solubilities as well as the thermal stability of ILs. There were found that [bmim][doc] tends to have higher absorption capacity toward acidic gases compared with [mim][doc]. The solubility of hydrogen sulfide, characterized by the Henry’s Law constant, in [bmim][doc] and [mim][doc] turned out nearly 4-5 and 1.5-2 times higher than in conventional ionic liquids resp. In the experiment, the researchers used many compounds, for example, 1-Methyl-1H-imidazol-3-ium chloride (cas: 35487-17-3Electric Literature of C4H7ClN2).
1-Methyl-1H-imidazol-3-ium chloride (cas: 35487-17-3) belongs to imidazole derivatives. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has become an important synthon in the development of new drugs. Imidazole based anticancer drug find applications in cancer chemotherapy. It is used as buffer component for purification of the histidine tagged recombinant proteins in immobilized metal-affinity chromatography (IMAC).Electric Literature of C4H7ClN2
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem