Uranium characterization in graphite scraps of unknown origin

Authors: Desideri D.¹; Meli M.A.¹; Testa C.²

Source: Journal of Radioanalytical and Nuclear Chemistry, Volume 248, Number 3, June 2001 , pp. 525-528(4)

Publisher: Springer

Abstract:

The paper describes the radiochemical and chemical analyses of industrial graphite scraps showing high radioactivity levels. The uranium concentration in some graphite scraps was very high (up to l kBq/g, 7.7%w/w) and its distribution greatly heterogeneus. Some uranium solubility tests carried out on the graphite scraps showed that 60–70% of the element could be dissolved with a buffer solution at pH 4 and that complete dissolution could be obtained by leaching with conc. HNO_3 . By taking into account these results it can be concluded that the radioactive contaminant consists of uranium chemically purified and isotopically treated.

Language: English

Document Type: Regular paper

Affiliations: 1: Institute of General Chemistry, Urbino University, P.zza Rinascimento 6, 61029 Urbino, Italy 2: Institute of General Chemistry, Urbino University, P.zza Rinascimento 6, 61029 Urbino, Italy, E-mail: chimgen@chim.uniurb.it

Publication date: 2001-06-01

• In this: publication
• By this: publisher
• In this Subject: Physical & Theoretical Chemistry
• By this author: Desideri D. ;  Meli M.A. ;  Testa C.

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