Investigation of chemical equilibrium kinetics by the electromigration method
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G. A. Bozhikov
Summary
The measurement of the chemical reaction rates for complex formation as well as hydrolysis type reactions by the method of horizontal zone electrophoresis is outlined. The correlation between chemical equilibrium kinetics and electrodiffusion processes in a constant d.c. electric field is described. In model electromigration experiments the reaction rate constant of the formation a complex by Hf(IV) and diethylenetriaminepentaacetic acid (DTPA) is determined. The electrophoretic mobility, diffusion coefficient and stability constant of the [HfDTPA]- complex are calculated, taking into account experimental electrophoretic data obtained at 298.15±0.05K and constant ionic strength. No-carrier-added 175Hf radionuclide was used in electromigration experiments at concentrations of 10-10-10-11M.
© 2003 Oldenbourg Wissenschaftsverlag GmbH
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Artikel in diesem Heft
- Preparation of 1-(2-pyridylazo)-2-naphthol functionalized benzophenone/naphthalene and their uses in solid phase extractive preconcentration/separation of uranium(VI)
- Solubility of crystalline thorium dioxide
- Tc(IV) chemistry in mixed chloride/sulphate acidic media. Formation of polyoxopolymetallic species
- The substitution reactions of [Tc(tu)6]3+ with CyDTA and citrate
- Investigation of chemical equilibrium kinetics by the electromigration method
- Equilibrium constants in aqueous lanthanide and actinide chemistry from time-resolved fluorescence spectroscopy: The role of ground and excited state reactions
- Destruction of 1,1-dichloroethylene/air mixture under gamma-ray irradiation
- Additivity rule and its application to the sorption of radionuclides on soils
- Globule formation of a clay mineral and a rapid method for the treatment of liquid radioactive waste
