Skip to main content
SpringerLink
Log in

Solvent extraction of hafnium(IV)

XXI. Extraction by di-N-butyl phosphoric acid in 2-ethylhexanol

  • Liquid-liquid Distribution
  • Published:
Journal of Radioanalytical Chemistry Aims and scope Submit manuscript

Abstract

175, 181Hafnium(IV) was extracted by HDBP in 2-ethylhexanol from 1–10M solutions of HClO4, HCl and HNO3, and 1–8M H2SO4. As with low polar organic phase diluents, the acidity dependence of the distribution ratio of Hf, D, passes through a minimum for HClO4, HCl, and H2SO4 whereas only an increase of D can be observed with increasing HNO3 concentration. From the slope analysis the following complexes were found to be extracted (HDBP=HA): HfA4 at <4M HClO4 and <5M HCl, lg Kextr=9, HfX4(HA)4 (X=ClO −4 , Cl− or NO −3 ) at >5M HClO4, >7M HCl and 1–10M HNO3, Hf(SO4)A2(HA)3–4 at <3M H2SO4, and Hf(SO4)2 (HA)4 at >6M H2SO4. Coextraction of sulphate with hafnium from H2SO4 solutions was evidenced in experiments with macro concentrations of Hf(IV) and35SO 2−4 .

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. D. H. LIEM, O. SINEGRIBOVA, Acta Chem. Scand., 25 (1971) 277.

    CAS  Google Scholar 

  2. D. F. PEPPARD, J. R. FERRARO, G. W. MASON, J. Inorg. Nucl. Chem., 7 (1958) 231.

    Article  CAS  Google Scholar 

  3. J. R. FERRARO, J. Appl. Spectroscopy, 17 (1963) 12.

    Article  CAS  Google Scholar 

  4. G. W. MASON, S. LEWEY, D. F. PEPPARD, J. Inorg. Nucl. Chem., 26 (1964) 2271.

    Article  CAS  Google Scholar 

  5. J. HÁLA, J. Inorg. Nucl. Chem., 29 (1967) 187.

    Article  Google Scholar 

  6. J. HÁLA, J. SMOLA, Coll. Czech. Chem. Commun., 40 (1975) 3329.

    Google Scholar 

  7. J. HÁLA, J. PŘÍHODA, Coll. Czech. Chem. Commun., 40 (1975) 546.

    Google Scholar 

  8. R. PŘIBIL, V. VESELÝ, Z. Anal. Chem., 200 (1964) 332.

    Article  Google Scholar 

  9. R. SCHMID, W. PFANNHAUSER, Mikrochim. Acta, 3 (1971) 434.

    Article  Google Scholar 

  10. O. NAVRÁTIL, J. Inorg. Nucl. Chem. 29 (1967) 2007.

    Article  Google Scholar 

  11. E. N. PATRUSHEVA, N. E. BREZHNEVA, G. V. KORPUSOV, Radiokhimiya, 2 (1960) 541.

    CAS  Google Scholar 

  12. A. A. NEMODRUK, Radiokhimiya, 11 (1969) 3.

    CAS  Google Scholar 

  13. J. HÁLA, D. POHANKOVÁ, J. Inorg. Nucl. Chem., 29 (1967) 2983.

    Article  Google Scholar 

  14. K. A. ORLANDINI, M. A. WAHLGREN, J. BARCLAY, Anal. Chem., 37 (1965) 1148.

    Article  CAS  Google Scholar 

  15. C. J. HARDY, D. SCARGILL, J. Inorg. Nucl. Chem., 17 (1961) 337.

    Article  Google Scholar 

  16. O. NAVRÁTIL, J. Inorg. Nucl. Chem., 30 (1968) 1605.

    Article  Google Scholar 

  17. T. SATO, J. Inorg. Nucl. Chem., 16 (1960) 157.

    Article  Google Scholar 

  18. E. TÁBORSKÁ, Thesis. Faculty of Science, J. E. Purkyně University, Brno, 1975.

  19. R. G. BATES, Determination of pH, Wiley, New York, 1965.

    Google Scholar 

  20. V. I. SHAMAYEV, V. P. KOTOV, Radiokhimiya, 17 (1975) 78.

    Google Scholar 

  21. O. NAVRÁTIL, J. Inorg. Nucl. Chem., 31 (1969) 855.

    Article  Google Scholar 

  22. T. G. LENZ, M. SCHMUTZ, J. Inorg. Nucl. Chem., 28 (1966) 1119.

    Article  CAS  Google Scholar 

  23. D. DYRSSEN, Acta Chem. Scand., 14 (1960) 1091.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Inorganic Chemistry, J. E. Purkyně University, Kotlářská 2, 611 37, Brno, (Czechoslovakia)

    J. Hála & E. Táborská

Authors
  1. J. Hála
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. E. Táborská
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Part XX: Coll. Czech. Chem. Commun., 40 (1975) 3617.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hála, J., Táborská, E. Solvent extraction of hafnium(IV). J. Radioanal. Chem. 30, 329–341 (1976). https://doi.org/10.1007/BF02516966

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02516966

Keywords

Search

Navigation