The rate of the reaction U4++ Cl2+ 2H2O → UO22++ 2Cl–+ 4H+ is shown to obey the rate law –d[UIV]/dt=k[UIV][Cl2][H+]–2. The rate constant decreases with increasing [Cl–] and the data are interpreted in terms of a mechanism involving two paths, U(OH)22++ Cl2 and U(OH)3++ HOCl. Rate constants and Arrhenius parameters are calculated for the two paths.
A. Adegite and M. H. Ford-Smith, J. Chem. Soc., Dalton Trans., 1973, 138 DOI: 10.1039/DT9730000138
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