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Equilibrium and kinetic studies of cobalt(II) complexation by folic acid

✍ Scribed by Andrés Thomas; Mario R. Feliz; Alberto L. Capparelli

Publisher
Springer
Year
1996
Tongue
English
Weight
376 KB
Volume
21
Category
Article
ISSN
0340-4285

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✦ Synopsis

The equilibrium and kinetics of the complexation of Co n by folic acid have been studied at 25 ~ the ionic strength being regulated with KNO 3 in the 5.6-7.3 pH range. Kinetic studies were performed using the stopped-flow method. Under our experimental conditions one process was observed; a reaction which took place within a few seconds. The results are consistent with the formation of a 1 : 1 complex between the reactants and a mechanism is proposed to account for the observed behaviour. Equilibrium constants for the Co II and folic acid system, as well as activation parameters, are reported.

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