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Oscillatory kinetics and mechanism of the chromate catalyzed decomposition of hydrogen peroxide

✍ Scribed by Mihály T. Beck; István P. Nagy; Gabriella Székely

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
590 KB
Volume
23
Category
Article
ISSN
0538-8066

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✦ Synopsis

Oscillatory change of pH occurs during the chromate-catalyzed decomposition of hydrogen peroxide in a weakly acidic medium at elevated temperature and at high initial concentration of hydrogen peroxide. In a closed system, there are only two or three periods, but sustained oscillation occurs in a CSTR. In a CSTR bistability is also found. In closed systems the temperature exhibits a great maximum (up to 15°C increase), in a CSTR sustained oscillation occurs at a constant stationary temperature.

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