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Complexation of Ni(II) by α-isosaccharinic acid and gluconic acid from pH 7 to pH 13

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Published/Copyright: September 25, 2009
Radiochimica Acta
From the journal Radiochimica Acta Volume 91 Issue 4

Summary

Nickel reactions with gluconic acid (Gl) and α-isosaccharinic acid (ISA) have been investigated from pH 7 to pH 13.3. Measurement of the stoichiometries of the products of these reactions showed that NiGl and NiISA were formed at pH<7, Ni2Gl(OH)3 and Ni2ISA(OH)3 were formed at pH values between 7 and 10 and Ni2Gl(OH)4 and Ni2ISA(OH)4 were formed at pH>10. The stability constants for the formation of the soluble complexes were measured using an ion exchange resin method (Schubert method) at pH 7 and 13.3, and differential pulse polarography at pH 7. The polarographic measurements were performed in order to check the validity of the Schubert method at pH 7. This was due to the possibility of any cationic complexes that may have been formed sorbing to the resin. The importance of determining the stoichiometry of the reactions before calculating the stability constants from measurements taken using the Schubert method is emphasised.

Published Online: 2009-9-25
Published in Print: 2003-4-1

© 2003 Oldenbourg Wissenschaftsverlag GmbH

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  2. Redox speciation method for neptunium in a wide range of concentrations
  3. Complete removal of uranyl nitrate from tissue matrix using supercritical fluid extraction
  4. Solubility of thorium from Th3UO8 and ZrTh3UO10 ceramics
  5. Chemistry of rhenium as an analogue of technetium: Experimental studies of the dissolution of rhenium oxides in aqueous solutions
  6. Multitracer studies on the permeation of rare earth elements through a supported liquid membrane containing 2-ethylhexyl phosphonic acid-2-ethylhexyl ester (EHEHPA)
  7. Adsorption of barium on kaolinite, illite and montmorillonite at various ionic strengths
  8. Development of selective cobalt and cesium removal from the evaporator concentrates of the PWR Paks
  9. Complexation of Ni(II) by α-isosaccharinic acid and gluconic acid from pH 7 to pH 13
  10. Radiosynthesis of 3-{[4-(4-[18F]fluorobenzyl)]piperazin-1-yl}methyl-1H-pyrrolo[2,3-b]pyridine: A potential dopamine D4 receptor imaging agent
https://doi.org/10.1524/ract.91.4.233.19971

Articles in the same Issue

  1. Cross section measurements using gas and solid targets for production of the positron-emitting radionuclide O-14
  2. Redox speciation method for neptunium in a wide range of concentrations
  3. Complete removal of uranyl nitrate from tissue matrix using supercritical fluid extraction
  4. Solubility of thorium from Th3UO8 and ZrTh3UO10 ceramics
  5. Chemistry of rhenium as an analogue of technetium: Experimental studies of the dissolution of rhenium oxides in aqueous solutions
  6. Multitracer studies on the permeation of rare earth elements through a supported liquid membrane containing 2-ethylhexyl phosphonic acid-2-ethylhexyl ester (EHEHPA)
  7. Adsorption of barium on kaolinite, illite and montmorillonite at various ionic strengths
  8. Development of selective cobalt and cesium removal from the evaporator concentrates of the PWR Paks
  9. Complexation of Ni(II) by α-isosaccharinic acid and gluconic acid from pH 7 to pH 13
  10. Radiosynthesis of 3-{[4-(4-[18F]fluorobenzyl)]piperazin-1-yl}methyl-1H-pyrrolo[2,3-b]pyridine: A potential dopamine D4 receptor imaging agent
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