The Reaction between Hydrogen Peroxide and Ferric Ions

In general, the individual rate constants in the above expression cannot be measured directly. It is not difficult, however, to obtain the velocity constant of reaction (1) because if the process is carried out in the presence of excess of ferrous salt the rate equation [corresponding to reactions (1) and (4)] assumes the simple form  

Such measurements were first carried out by Haber and Weiss (3b) in the concentration range of up to 10-3 molar of the reactants. Under these conditions the reaction is fairly rapid and a special apparatus had to be employed. Their measurements (in the temperature range 6° to 45°) can be represented by  

Evans et al. (10) used a colorimetric method and worked in the concentration range of 10 6 molar, where the reaction could be followed over a considerable period. They obtained (in the temperature range 12° to 35°)  

The Reaction between Hydrogen Peroxide and Ferric Ions 

This reaction has been studied by a number of authors. The simple rate law  

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II. The Reaction between Hydrogen Peroxide and Ferric Ions. 347... 

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