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Kinetics of Cadium and Copper Hydrolysis
Journal article   Peer reviewed

Kinetics of Cadium and Copper Hydrolysis

J Patterson, C Haas, R Vamos and E Cooney
Water science and technology, v 19(5-6), pp 1021-1027
01 May 1987

Abstract

Cadmium Caustic soda Chemical equilibrium Complexation Constants Continuous flow Copper Electrodes Equilibrium Experiments Heavy metals Hydroxides Kinetics Ligands Metals Pollutants Reaction kinetics Reactors Removal
Prior investigators have implicated kinetic limitations as being significant in the regulation of metal removal by precipitation processes. However, there have been no prior direct measurements on rates of such processes with the environmentally more significant metals. This study measured homogeneous complexation rates of cadmium and copper with hydroxide in a complete mix continuous flow reactor, using ion specific electrodes. The cadmium complexation kinetics are consistent with a forward mixed second order process coupled with a reverse first order process, and such model provides agreement with reported equilibrium constants for the formation of CdOH+.

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Web of Science research areas
Engineering, Environmental
Environmental Sciences
Water Resources
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