The single-crystal X-ray diffraction observations also establish that 1:1 complex is formed between NTAamide and thorium nitrate, which are in good accordance with the solvent extraction results, and NTAamide is coordinated with Th(IV) in a tetradentate coordination mode. a graphitemoderated He-cooled reactor, shows distinguishing features for the use of Th-based fuel (IAEA-TECDOC-1155, 2000IAEA-TECDOC-1349, 2003Lung and. The interest in neutron research is still growing, due to impr. The thermodynamic parameters describing the extraction of Th(IV) indicate that the process is endothermic and spontaneous at 298 K. This article briefly reviews the most important points of neutron generation using accelerators in the small and medium energy ranges. Slope analysis shows that Th(IV), U(VI) and Lns(III) were all extracted as mono-solvated species at 3.0 M HNO 3. International Atomic Energy Agency see also Thorium Based Fuel Options for the Generation of Electricity: Developments in the 1990s, IAEA-TECDOC-1155, International Atomic Energy Agency. Very high SF Th/M in the range between 2.5 × 10 2 and 10 × 10 3 was observed.
NTAamide(C8) exhibits excellent extraction power and selectivity toward Th(IV) over U(VI) and Lns(III) in a wide range of acidity from 0.1 to 10.0 M HNO 3. N, N, N′, N′, N″, N″-hexaoctylnitrilotriacetamide (NTAamide(C8)) and N,N,N′ ,N′ ,N″ ,N″-hexabutylnitrilotriacetamide (NTAamide(C4)) were synthesized for selective solvent extraction of Th(IV) from U(VI) and lanthanides(III) (Lns(III)) and for coordination between Th(IV) and NTAamide, respectively.
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