3,3′-Bis(diisopropoxyphosphoryl)-1,1′-(heptane-1,7-diyl)diurea as a Very Efficient Extraction Agent for Europium and Americium
| Autor: | Emanuel Makrlík, Pavel Selucký, Petr Vaňura, Vasiliy Brusko |
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| Rok vydání: | 2018 |
| Předmět: |
Heptane
Hydrogen Extraction (chemistry) Biophysics Cationic polymerization chemistry.chemical_element Americium 010402 general chemistry 010403 inorganic & nuclear chemistry 01 natural sciences Biochemistry 0104 chemical sciences Nitrobenzene chemistry.chemical_compound chemistry Phase (matter) Physical chemistry Physical and Theoretical Chemistry Europium Molecular Biology |
| Zdroj: | Journal of Solution Chemistry. 47:715-726 |
| ISSN: | 1572-8927 0095-9782 |
| DOI: | 10.1007/s10953-018-0748-6 |
| Popis: | Solvent extraction of microamounts of Eu3+ and Am3+ from water into nitrobenzene by means of a mixture of hydrogen dicarbollylcobaltate and 3,3′-bis(diisopropoxyphosphoryl)-1,1′-(heptane-1,7-diyl)diurea (L) was studied. The equilibrium data were explained by assuming that the species HL+, $$ {\text{ML}}_{2}^{3 + } $$ , and $$ {\text{ML}}_{3}^{3 + } $$ {M3+ = Eu3+, Am3+; L = 3,3′-bis(diisopropoxyphosphoryl)-1,1′-(heptane-1,7-diyl)diurea} are extracted into the organic phase. Extraction and stability constants of the cationic complex species in nitrobenzene saturated with water were determined and discussed. From the experimental results it is apparent that this very effective receptor for the Eu3+ and Am3+ cations could be considered as a potential extraction agent for nuclear waste treatment. |
| Databáze: | OpenAIRE |
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