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International Journal of Chemical Reactor Engineering

Ed. by de Lasa, Hugo / Xu, Charles Chunbao

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1542-6580
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A Comparative Study of the Flow Dynamics in Two Observation Cells for Measuring the Kinetics of the Fast Redox Reaction between Cu2+ and S2O32-

Mihaela-Ligia M. Unguresan
Published Online: 2011-08-08 | DOI: https://doi.org/10.1515/1542-6580.2341

For the study of Cu2+ - S2O32- reaction kinetics was used an experimental stopped flow apparatus with two types of observation cells. The first has a toroidal mixing chamber, and the other, with a separate mixing chamber has the entrance of the reactants on two perpendicular directions. The reaction rate and the residence time have been calculated during the flow in the mixing chambers and the observation cells. The calculated values have been compared with the real formation and decomposition time of the reaction intermediate. The deviations due to the residence-time in the toroidal chamber and in the observation cell respectively are smaller than those for the cell with separate mixing chamber due to its different geometry. The shape of the experimental curves I = f(t) with the toroidal cell lead to kinetic parameters which are different than the ones obtained with the other cell.

Keywords: kinetics redox reaction; mixing chamber; rate flow; reaction intermediate

About the article

Published Online: 2011-08-08


Citation Information: International Journal of Chemical Reactor Engineering, Volume 9, Issue 1, ISSN (Online) 1542-6580, DOI: https://doi.org/10.1515/1542-6580.2341.

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