Investigation into the spontaneous dissolution of tungsten using acid media

Smith, K. A. and Dean, John (1993) Investigation into the spontaneous dissolution of tungsten using acid media. The Analyst, 118 (11). pp. 1445-1447. ISSN 0003 2654

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Official URL: http://dx.doi.org/10.1039/AN9931801445

Abstract

An acid-decomposition method, using hydrofluoric and nitric acids, was found to require no external heat source to dissolve tungsten wire. This spontaneous decomposition method was compared with an established method based on hydrogen peroxide as the dissolution medium. The determination of trace elements (potassium, nickel and iron) in tungsten wire by the two methods was compared; no significant differences between the methods were noted. The effects of varying the acid-decomposition mixture and sample mass are noted.

Item Type: Article
Uncontrolled Keywords: Acid decomposition, flame atomic absorption spectrometry, spontaneous dissolution, trace analysis, tungsten wire
Subjects: F100 Chemistry
F200 Materials Science
Department: Faculties > Health and Life Sciences > School of Life Sciences > Applied Sciences
Depositing User: Becky Skoyles
Date Deposited: 05 Feb 2015 13:16
Last Modified: 15 Mar 2016 17:02
URI: http://nrl.northumbria.ac.uk/id/eprint/19593

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