Conductometric determination of carbon in uranium carbide and its solution in nitric acid

Journal article

Authors/Editors

Sahoo, Pradeep

Research Areas

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Publication Details

Author list: Ahmed MK, Geetha R, Pandey NK, Murugesan S, Koganti SB, Saha B, Sahoo P, Sundararajan MK

Publisher: Elsevier

Place: AMSTERDAM

Publication year: 2000

Journal: Talanta: The International Journal of Pure and Applied Analytical Chemistry (0039-9140)

Journal acronym: TALANTA

Volume number: 52

Issue number: 5

Start page: 885

End page: 892

Number of pages: 8

ISSN: 0039-9140

Languages: English-Great Britain (EN-GB)

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Abstract

A simple but accurate method has been developed for the determination of carbon in uranium carbide powders/pellets as well as in solutions of uranyl nitrates. The methodology involves quantitative conversion of carbon present in the sample to carbon dioxide that is subsequently absorbed in a dilute solution of barium hydroxide. The conductivity shift of the barium hydroxide solution is monitored on-line continuously using a laboratory-built PC-based conductivity measurement system that has been developed in-house based on the direct conversion of conductance to the digital pulse frequency. A new gas absorption cell has been designed to ensure quantitative absorption during the residence time of the gas in the cell. The method is sensitive, accurate and precise to 1-3% at 600-1000 mu g of carbon in samples of uranium carbide. (C) 2000 Elsevier Science B.V. All rights reserved.

Keywords

carbon determination, digital conductometry, dissolver solution, online monitoring, uranium carbide

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