Actions for Determination of Fe(II)Fe(II) ratio in glass [electronic resource].

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Determination of Fe(II)Fe(II) ratio in glass [electronic resource].

Published
Washington, D.C : United States. Dept. of Energy. Office of the Assistant Secretary for Defense Programs, 1989.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: (13 pages) : digital, PDF file
Additional Creators
Savannah River Laboratory, United States. Department of Energy. Office of the Assistant Secretary for Defense Programs, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The procedure was designed for the simple, rapid determination of the Fe(II)/Fe(III) ratio in glass samples. The procedure consists of the following steps: dissolution of the pulverized glass sample in a sulfuric-hydrofluoric acid mixture, containing ammonium vanadate, which preserves the Fe(II) content; addition of boric acid to destroy iron-fluoride complexes, making the iron available for color formation with Ferrozine; addition of pH 5 buffer and Ferrozine reagent to form the magenta-colored ferrous-Ferrozine complex, with measurement of the absorbance for the determination of Fe(II) content; and, addition of ascorbic acid to reduce Fe(III) to Fe(II), with a second absorbance measurement that determines total Fe. Directions for the preparation of glass from non-radioactive sludge samples are provided. The analysis of this prepared glass for the Fe(II)/Fe(III) ratio is an indication of the ratio that would be in a plant batch of glass if made from this sludge.
Report Numbers
E 1.99:dpstm-87-700-6
E 1.99: ads--2207
ads--2207
dpstm-87-700-6
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Note
Published through SciTech Connect.
07/26/1989.
"dpstm-87-700-6"
" ads--2207"
"DE91004324"
Baumann, E.W.
Funding Information
AC09-89SR18035
View MARC record | catkey: 14396532