Skip to main content
SpringerLink
Log in

Spectrophotometric estimation of thorium by morellin

  • Published:
Proceedings of the Indian Academy of Sciences - Section A Aims and scope Submit manuscript

Summary

The spectrophotometric estimation of thorium has been studied by employing morellin which forms an orange-red complex in alcoholic medium. The complex is found to obey Beer’s law at 515 mμ in the range 1·4 to 25 p.p.m. of thorium. It has been found that the complex is stable between the pH 5 and 7. Morellin to thorium mole ratio in the 8 co-ordinate inner complex of thorium is 4∶1. Limits of tolerance of interfering ions during the estimation of thorium have also been ascertained.

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. Moeller, T., Schweitzer, G. K. and Starr, D. D.Chem. Review, 1948,42, 63.

    Article  Google Scholar 

  2. Thomason, P. F., Perry, M. A. and Byerly, W. M.Anal. Chem., 1949,21, 1239.

    Article  Google Scholar 

  3. Mayer, A. and Bradshaw, G.Analyst, 1952,72, 154.

    Article  Google Scholar 

  4. Banks, C. V. and Byrd, C. H.Anal. Chem., 1953,25, 417.

    Google Scholar 

  5. Moeller, T. and Tecotzky, M.,Ibid., 1955,27, 1056.

    Article  Google Scholar 

  6. Purushottam, A.Z. anal. Chem., 1955,145, 245.

    Article  Google Scholar 

  7. Rao, B. S.J.C.S., 1937, 853.

  8. Rao, P. L. N., Murthy, D. V. K. and Verma, S. C. L.Naturwissenschaften, 1954,41, 66.

    Google Scholar 

  9. Haendler, H. M. and Geyer, B. P.J.A.C.S., 1938,60, 2813.

    Article  Google Scholar 

  10. Neish, A. C.Chem. News, 1904,90, 196, 201.

    Google Scholar 

  11. Hiskey, C. F.Anal. Chem., 1949,21, 1440.

    Article  Google Scholar 

  12. —, Rabinowitz, J. and Young, I. G.Ibid., 1950,22, 1464.

    Article  Google Scholar 

  13. Young, I. G. and Hiskey, C. F.,Ibid., 1951,23, 506.

    Article  Google Scholar 

  14. Bastian, R.Ibid.,, 1949,21, 972.

    Article  Google Scholar 

  15. —, Weberling, R. and Palilla, F.Ibid.,, 1950,22, 160.

    Article  Google Scholar 

  16. Job, P.Ann. chim., 1928,9 (10), 113.

    Google Scholar 

  17. Vosburgh, W. C. and Cooper, G. R.J.A.C.S., 1941,63, 437.

    Article  Google Scholar 

  18. Harvey, A. E. and Manning, D. L.Ibid., 1950,72, 4488.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of General Chemistry, Indian Institute of Science, Bangalore-3

    B. R. Lakshman Rao & C. C. Patel

Authors
  1. B. R. Lakshman Rao
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. C. C. Patel
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

(Communicated by Prof. K. R. Krishnaswami,f.a.sc.)

Rights and permissions

Reprints and permissions

About this article

Cite this article

Rao, B.R.L., Patel, C.C. Spectrophotometric estimation of thorium by morellin. Proc. Indian Acad. Sci. 42, 317–325 (1955). https://doi.org/10.1007/BF03053534

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03053534

Keywords

Search

Navigation