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| Hauptseite > Publikationsdatenbank > Fast radiation-induced reactions in organic phase of SANEX system containing CyMe4-BTPhen extracting agent > print |
| Hauptseite > Publikationsdatenbank > Fast radiation-induced reactions in organic phase of SANEX system containing CyMe4-BTPhen extracting agent > print |
| 001 | 863442 | ||
| 005 | 20240708133845.0 | ||
| 024 | 7 | _ | |a 10.1016/j.radphyschem.2019.108356 |2 doi |
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| 024 | 7 | _ | |a 0969-806X |2 ISSN |
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| 100 | 1 | _ | |a Szreder, T. |0 P:(DE-HGF)0 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Fast radiation-induced reactions in organic phase of SANEX system containing CyMe4-BTPhen extracting agent |
| 260 | _ | _ | |a Frankfurt, M. |c 2019 |b Pergamon Press |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a The mechanism of radiation-induced fast reactions occurring in the early stages in the 1-octanol system containing 2,9-Bis-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-benzo (Herbst et al., 2011; Nash et al., 2015; Bourg et al., 2015)triazin-3-yl)- (Herbst et al., 2011; Panak and Geist, 2013)phenanthroline (CyMe4-BTPhen) extracting agent were studied. This is a simplified model of the r-SANEX organic phase for the selective actinide(III)/lanthanide(III) separation. Effects of various scavengers as well as water content were under consideration. Radiation chemical yield of e−s (G(e−s)) and their molar absorption coefficient (ε(e−s)) in 1-octanol were found to be 130(10) nmol J−1 and 18500(700) M−1 cm−1, respectively. Rate constants of e−s reactions with H+, O2, CyMe4-BTPhen and its protonated form were found to be 1.5(3) × 109, 1.0(1) × 1010, 1.85(9) × 109, 1.9(6) × 109 M−1 s−1, respectively. The C37 value for scavenging of dry electrons (e−dry) by CyMe4-BTPhen was equal to 30.4(8) mM. Rate constants of H• reactions with CyMe4-BTPhen and its protonated form were found to be < 7.2 × 109 and 4.3(9) × 109 M−1 s−1, respectively. A relatively good extraction performance of the system studied under exposition to high radiation doses was explained on the basis of hydroxyloctyl substitution in a phenanthroline aromatic ring. |
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| 773 | _ | _ | |a 10.1016/j.radphyschem.2019.108356 |g Vol. 164, p. 108356 - |0 PERI:(DE-600)2019621-0 |p 108356 |t Radiation physics and chemistry |v 164 |y 2019 |x 0969-806X |
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