Microcalorimetric Determination of the Enthalpy of Formation of the Complex Ions of Trivalent Plutonium, Americium and Lanthanium with EDTA

  • J. Fuger
  • B. B. Cunningham
Conference paper


As to date, quantitative data on actinide complex species are very scarce and, when existing often limited to stability constants determinations. No direct calorimetric measurement of the enthalpy of complexing have sofar been published for those elements. The present communication deals with such measurements for the complexing of Pu3+ and Am3+ with EDTA. We also report data on La3+ complexing for comparison purpose. From the enthalpy change and knowing the stability constants of the chelates, the entropy variation ori complexing can easily be calculated.


Stability Constant Enthalpy Change Entropy Variation Lanthanide Series Transuranium Element 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    SCHWARZENBACH, G., and ACKERMANN, H., He1v. Chim. Acta, 30, 1798 (1947).CrossRefGoogle Scholar
  2. 2.
    CABELL, M.J., Aere C/R 813 (1951), Analyst, 77, 859 (1952).CrossRefGoogle Scholar
  3. 3.
    FUGER, J., and CUNNINGHAM, B. B., J. Inorg. Nucl. Chemn., 25, 1423 (1963).CrossRefGoogle Scholar
  4. 4.
    WESTRUM, Jr., E. F., and ROBINSON, H. P., The Transuranium Elements (edited by G. T. SEABORG, J. J. KATZ and W. M. MANNING), Plutonium Project Records NNES, Div. IV vol 14 B, p.922, McGraw Hill, New York (1949).Google Scholar
  5. 5.
    SPEDDING, F. H., and FLYNN, J. P., J. Am. Chem. Soc., 76, 1477 (1954).CrossRefGoogle Scholar
  6. 6.
    ANDEREGG, G., Helv, Chim. Acta., 46, 1833 (1963).CrossRefGoogle Scholar
  7. 7.
    WESTRUM Jr., E. F., and EYRING, L., J. Am. Chem. Soc., 74, 2045 (1952).CrossRefGoogle Scholar
  8. 8.
    FOREMANN, J. K., and SMITH, T. D., J. Chem. Soc. (London), 1957, 1752.Google Scholar
  9. 9.
    FUGER, J., J. Inorg. Nucl. Chem., 5, 332 (1958).CrossRefGoogle Scholar
  10. 10.
    SCHWARZENBACH, G., GUT, R., and ANDEREGG, G., Helv.Chim. Acta., 37, 936 (1954).CrossRefGoogle Scholar
  11. 11.
    FUGER, J., J. Inorg. Nucl. Chem., 18, 263 (1961).CrossRefGoogle Scholar
  12. 12.
    MACKEY, J. L., POWELL, J. L., and SPEDDING, F. H., J. Am. Chem. Soc., 84, 2047 (1962).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Wien 1964

Authors and Affiliations

  • J. Fuger
    • 1
  • B. B. Cunningham
    • 1
  1. 1.Department of Chemistry and Lawrence Radiation LaboratoryUniversity of CaliforniaBerkeleyUSA

Personalised recommendations