
%0 Journal Article
%A Bryson, A 
%A Fletcher, IS 
%T Ligand exchange kinetics in the calcium-EDTA system
%J Australian Journal of Chemistry
%D 1970/06/01
%V 23
%N 6
%P 1095-1110
%K 
%R https://doi.org/10.1071/CH9701095
%U https://www.publish.csiro.au/paper/CH9701095 
%X Rate constants and associated enthalpies and entropies of activation have been determined for reactions occurring at equilibrium in solutions containing K2CaEDTA and K&#945;H4-&#945;EDTA, where x is a stoicheiometric number. The reactions, which include exchange between the bound ligand in CaEDTA2- and the various protonated forms of the free ligand as well as the formation and decomposition reactions of CaEDTA2- and CaHEDTA-, have been investigated by N.M.R. techniques using the Job method of continuous variations. Reaction mechanisms are proposed. 
