Extraction behavior of Mo and W from H2SO4 and HF/HCl solutions into toluene with Aliquat336: sulfate and fluoride complex formation of Mo and W towards chemical studies of seaborgium (Sg) | Health & Environmental Research Online (HERO)

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Tags

HERO ID

4734621

Reference Type

Journal Article

Title

Extraction behavior of Mo and W from H2SO4 and HF/HCl solutions into toluene with Aliquat336: sulfate and fluoride complex formation of Mo and W towards chemical studies of seaborgium (Sg)

Author(s)

Toyoshima, A; Mitsukai, A; Tsukada, K; Ooe, K; Haba, H; Komori, Y; Murakami, M; Kaneya, Y; Sato, D; Asai, M; Sato, TK; Nagame, Y

Year

2018

Is Peer Reviewed?

Yes

Journal

Journal of Radioanalytical and Nuclear Chemistry
ISSN: 0236-5731
EISSN: 1588-2780

Volume

317

Issue

Page Numbers

421-430

DOI

10.1007/s10967-018-5882-5

Web of Science Id

WOS:000435823100043

Abstract

We have studied extraction behavior of group-6 elements Mo and W to search for suitable conditions for an on-line extraction experiment of their heavier homolog, seaborgium (Sg). Batch-wise extraction of carrier-free radiotracers Mo-93m and W-177,W-179,W-181 were carried out from 0.10 - 8.6 M H2SO4 and 1.0 x 10(-4) - 5.0 M HF/1.0 M HCl into toluene with a quaternary ammonium compound, Aliquat336. Anionic sulfate complexes of Mo and W with charge - 2 were extracted with Aliquat336 from H2SO4 solutions with concentrations of [H2SO4] > 2 M. In HF/1.0 M HCl, oxyfluoro complexes of Mo and W with charge - 1 were interpreted to be formed and extracted with Aliquat336. From these results, favorable conditions for the extraction of Sg are discussed.

Keywords

Molybdenum; Tungsten; Seaborgium; Solvent extraction; Sulfate complex; Oxyfluoro complex