Formation of Minimal Third Phase in Ionic Liquid Extraction System with Trioctylphosphine Oxide and Its Possible Application to Extraction Concentration
| Autor: | Mizuki Toita, Kotaro Morita, Naoki Hirayama |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010401 analytical chemistry
Extraction (chemistry) Aqueous two-phase system 010402 general chemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry chemistry.chemical_compound chemistry Third phase Phase (matter) Ionic liquid Lipophilicity Imide Trioctylphosphine oxide Nuclear chemistry |
| Zdroj: | Analytical Sciences. 34:1063-1065 |
| ISSN: | 1348-2246 0910-6340 |
| Popis: | The third-phase formation behavior in ionic liquid (IL) extraction system using trioctylphosphine oxide (TOPO) was investigated. In the use of a relatively less-lipophilic IL, such as 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (C4mimTf2N), the third phase was formed between the aqueous phase and the IL phase. The third phase seems to have a relatively high lipophilicity compared to the IL phase. The main components of the third phase were suggested as being (H3O)TOPO+, IL anion (Tf2N-), IL cation (C4mim+) and free TOPO. In addition, the third phase showed an extraction concentration ability for the Fe(III)-thiocyanato complex. |
| Databáze: | OpenAIRE |
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