Details

Autor(en) / Beteiligte

• Fujii, Toshiyuki
• Okude, Genki
• Uehara, Akihiro
• Sekimoto, Shun
• Hayashi, Hirokazu
• Akabori, Mitsuo
• Minato, Kazuo
• Yamana, Hajimu

Titel

Coordination characteristics of trivalent lanthanides and actinides in molten hydrate salts of Ca(NO3)2 and CaCl2

Ist Teil von

• Journal of radioanalytical and nuclear chemistry, 2011-04, Vol.288 (1), p.181-187

Ort / Verlag

Dordrecht: Springer Netherlands

Erscheinungsjahr

2011

Quelle

2022 ECC(Springer)

Beschreibungen/Notizen

• Distribution behavior of Ce(III), Am(III), and Cm(III) between tri- n -butyl phosphate solution and molten calcium nitrate hydrate Ca(NO 3 ) 2 · R H 2 O or molten calcium chloride hydrate CaCl 2 · R H 2 O was studied radiochemically. In Ca(NO 3 ) 2 · R H 2 O systems, maximum separation factors of Ce and Cm to Am were observed to be 12 (Ce/Am) and 1.7 (Cm/Am). The distribution ratios of these elements increased with the decrease of water activity in the hydrates, and the extractabilities at the water deficient region was less sensitive compared to those at the water abundant region. This trend was similar to the coordination circumstance change observed in electronic absorption spectra of Nd(III) in the hydrates.