Preparation of uranium(III) by mercury cathode electrolysis and its absorption spectra in hydrochloric acid solution

Mao Jia-Jun; Zhou Zuming; Qin Qizong

doi:10.1007/bf02040376

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 147: Issue 2

Preparation of uranium(III) by mercury cathode electrolysis and its absorption spectra in hydrochloric acid solution

Authors:

Mao Jia-Jun

Mao Jia-Jun Fudan University Department of Nuclear Science 200433 Shanghai (PR China)

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Zhou Zuming

Zhou Zuming Fudan University Department of Nuclear Science 200433 Shanghai (PR China)

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Qin Qizong

Qin Qizong Fudan University Department of Nuclear Science 200433 Shanghai (PR China)

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Pages:: 277–285

Online Publication Date:: 14 Aug 2005

Publication Date:: 17 Feb 1991

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02040376

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Abstract

The reduction of hexavalent to trivalent uranium by mercury cathode electrolysis in hydrochloric acid solution was investigated. The dependence of the reducton ratio on the different media, the acid and uranium concentrations, and on the time of electrolysis was determined. It was found that hexavalent uranium can be reduced quantitatively to trivalent state by mercury cathode electrolysis. The absorption spectra of U(III) and U(IV) in 1M and 9M hydrochloric acid solutions were examined. The molar extinction coefficient of U(III) at 521 nm was 16.7 m²·mol^–1 within the HCl concentration range of 0.5–4.5M. U(IV) practically does not interfere in the photometric determination of U(III) at this wavelength. A good linear dependence of absorbance on the concentration of U(III) was found.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)