Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

2 Publications
Investigations to the Eu(III)-B(OH)3-Organic System at increased salt concentrations
Schott, J.; Acker, M.; Kretzschmar, J.; Barkleit, A.; Taut, S.; Brendler, V.; Bernhard, G.;
Boric acid (B(OH)3) and (poly)borates are of great interest regarding the mobilization of trivalent actinides in nuclear waste repositories, particularly in salt deposits.
This work describes the influence of boric acid on the Eu salicylate complexation due to the formation of a borate ester of salicylate, which could be the key to determine the stability constants of Eu-borate complexes.
Furthermore, at pH 6 the formation of a solid Eu borate species in presence of polyborates is observed. The formation progress of the solid Eu borate species depends on the polyborate concentration and salt concentration. The solid formation could be an interesting possibility for the immobilization of trivalent actinides in a nuclear waste repository.
Keywords: lanthanides, actinides, europium, boric acid, borates, polyborates
  • Contribution to proceedings
    Actinide and Brine Chemistry in a Salt Repository Workshop (III), ABC-Salt(III), 15.-17.04.2013, Santa Fe, New Mexico, USA
  • Lecture (Conference)
    Actinide and Brine Chemistry in a Salt Repository Workshop (III), ABC Salt III, 15.-17.04.2013, Santa Fe, New Mexico, USA

Publ.-Id: 18400 - Permalink