Improvement of the cloud point extraction of uranyl ions by the addition of ionic liquids was written by Gao, Song;Sun, Taoxiang;Chen, Qingde;Shen, Xinghai. And the article was included in Journal of Hazardous Materials in 2013.Recommanded Product: 404001-48-5 This article mentions the following:
The cloud point extraction (CPE) of uranyl by different kinds of extractants in Triton X-114 (TX-114) micellar solution was studied upon the addition of ionic liquids (ILs) with various anions, i.e., Br–, BF4–, PF6– and bis[(trifluoromethyl)sulfonyl]imide (NTf2–). A significant increase of the extraction efficiency was found on the addition of NTf2– based ILs when using neutral extractant tri-octylphosphine oxide (TOPO), and the extraction efficiency kept high at both nearly neutral and high acidity. However, the CPE with acidic extractants, e.g., bis(2-ethylhexyl) phosphoric acid (HDEHP) and 8-hydroxyquinoline (8-HQ) which are only effective at nearly neutral condition, was not improved by ILs. The results of zeta potential and 19F NMR measurements indicated that the anion NTf2– penetrated into the TX-114 micelles and was enriched in the surfactant-rich phase during the CPE process. Meanwhile, NTf2– may act as a counterion in the CPE of UO22+ by TOPO. The addition of IL increased the separation factor of UO22+ and La3+, which implied that in the micelle TOPO, NTf2– and NO3– established a soft template for UO22+. Therefore, the combination of CPE and IL provided a supramol. recognition to concentrate UO22+ efficiently and selectively. In the experiment, the researchers used many compounds, for example, 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5Recommanded Product: 404001-48-5).
3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole is incorporated into many important biological compounds. The most pervasive is the amino acid histidine, which has an imidazole side-chain. Histidine is present in many proteins and enzymes, e.g. by binding metal cofactors, as seen in hemoglobin.Recommanded Product: 404001-48-5
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem