Journal of Radioanalytical and Nuclear Chemistry

, Volume 109, Issue 2, pp 403–411 | Cite as

Synergistic extraction of uranyl ion with 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 (HPMBP) and some long chain aliphatic sulfoxides

  • S. A. Pai
  • M. S. Subramanian
Article

Abstract

Synergistic extraction of uranyl ion with 1-phenyl-3-methyl-4-benzoyl pyrazolone-5 (HPMBP) and aliphatic sulfoxides of varying basicities, viz di-isoamyl (DIASO), di-n-hexyl (DHSO), di-n-septyl (DSSO), di-n-octyl (DOSO), di-n-nonyl (DNSO), di-n-decyl (DDSO) or di-n-undecyl (DuDSO) sulfoxide has been studied at 30±0.1°C. Extraction with some of these sulfoxides has been studied at various fixed temperatures also. The organic phase equilibrium constant (log Ks) has been found to increase with the basicity of the sulfoxide up to DOSO beyond which there is a gradual decreasing trend which has been attributed to the effect of possible steric hindrance (spatial) involved in the bonding of the higher sulfoxides (greater than 8 carbon atoms) with UO2 (PMBP)2 chelate. This has been supported by thermodynamic data involved in these systems. The entropy values for sulfoxides with eight or more carbon atoms are much more negative as compared to the lower sulfoxides and are also in contrast to HTTA and BTFA systems with these sulfoxides studied earlier.

Keywords

Entropy Carbon Atom Phase Equilibrium Sulfoxide Organic Phase 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Y. A. ZOLOTOV, M. K. CHMUTOVA, P. N. PALEI, Zh. Analit. Khim., 21 (1966) 1217.Google Scholar
  2. 2.
    M. Y. MIRZA, Report, Riso-149, 1967Google Scholar
  3. 3.
    M. K. CHMUTOVA, P. N. PALEI, Y. A. ZOLOTOV, Zh. Analit. Khim., 23 (1968) 1476.Google Scholar
  4. 4.
    B. F. MYASOEDOV, N. E. KOCHETKOVA, M. K. CHMUTOVA, Zh. Analit. Khim., 27 (1972) 678; 28 (1973) 1723.Google Scholar
  5. 5.
    M. K. CHMUTOVA, G. A. PRIBILOVA, B. F. MYASOEDOV, Zh. Analit. Khim., 28 (1973) 2340.Google Scholar
  6. 6.
    W. BACHER, C. KELLER, J. Inorg. Nucl. Chem., 35 (1973) 2945.CrossRefGoogle Scholar
  7. 7.
    M. K. CHMUTOVA, B. F. MYASOEDOV, N. E. KOCHETKOVA, B. Y. SPIVAKOV, Y. A. ZOLOTOV, Radiokhimiya, 16 (1974) 702.Google Scholar
  8. 8.
    J. HALA, J. PRINODA, Collec. Czech. Chem. Comm., 40 (1975) 546.Google Scholar
  9. 9.
    G. N. RAO, J. S. THAKUR, J. Sci. Ind. Res., 34 (1975) 110.Google Scholar
  10. 10.
    M. Y. MIRZA, R. T. BAILLY, J. Inorg. Nucl. Chem., 41 (1979) 772.CrossRefGoogle Scholar
  11. 11.
    O. NAVARATIL, Collec. Czech. Chem. Comm., 45 (1980) 1221.Google Scholar
  12. 12.
    M. Y. MIRZA, F. I. NWABUE, Radiochim. Acta., 27 (1980) 47.Google Scholar
  13. 13.
    S. UMETHANI, M. MATSUI, J. TOEI, T. SHEGEMATSU, Anal. Chim. Acta., 113 (1980) 315.CrossRefGoogle Scholar
  14. 14.
    M. Y. MIRZA, F. I. NWABUE, Talanta., 28 (1981) 49.CrossRefGoogle Scholar
  15. 15.
    G. A. PRIBILOVA, M. K. CHMUTOVA, B. F. MYASOEDOV, Radiokhimiya, 23 (1981) 521.Google Scholar
  16. 16.
    M. S. SUBRAMANIAN, A. VISWANATHA, J. Inorg. Nucl. Chem., 31 (1969) 2575.CrossRefGoogle Scholar
  17. 17.
    M. S. SUBRAMANIAN, S. A. PAI, J. Inorg. Nucl. Chem., 32 (1970) 6377.CrossRefGoogle Scholar
  18. 18.
    M. S. SUBRAMANIAN, S. A. PAI, Aust. J. Chem., 26 (1973) 77.Google Scholar
  19. 19.
    S. A. PAI, M. S. SUBRAMANIAN, J. Radioanal. Nucl. Chem., Articles, 89 (1985) 423.Google Scholar
  20. 20.
    B. B. JENSEN, Acta Chem. Scand., 13 (1959) 1668.Google Scholar
  21. 21.
    S. A. PAI, J. P. SHUKLA, P. K. KHOPKAR, M. S. SUBRAMANIAN, J. Radioanal.Chem., 42 (1978) 323.Google Scholar

Copyright information

© Akadémiai Kiadó 1987

Authors and Affiliations

  • S. A. Pai
    • 1
  • M. S. Subramanian
    • 1
  1. 1.Radiochemistry DivisionBhabha Atomic Research CentreBombayIndia

Personalised recommendations