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Compleximetric titration of chromium (III) with catalytic end-point detection

✍ Scribed by Siegbert Pantel

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 147 KB
Volume: 203
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(87)90011-0

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✦ Synopsis

Chromium (III) (2-20 mg) is determined by reaction with excess of EDTA and backtitration with a standard copper (II) solution to a catalytic end-point. The indicator reaction is the copper (II) -catalyzed autodecomposition of hydrogen peroxide, which is observed biamperometrically. For 10 mg of chromium (III), the relative standard deviation was < 0.5% (n= 10).

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