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Spectrophotometric determination of thorium using chrysin

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Summary

Chrysin forms a yellow coloured complex with thorium. This colour reaction has been investigated and utilised for spectrophotometric determination of thorium. The colour has maximum intensity at pH 2·8. It obeys Beer-Lambert’s law at 380 mµ between the concentration limits of 2 and 36 p.p.m. of thorium. The molar composition of the complex has been found to be 1:1.

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Authors and Affiliations

  1. Department of Chemistry, University of Delhi, Delhi-6

    Mohan Katyal & R. P. Singh

Authors
  1. Mohan Katyal
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  2. R. P. Singh
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Additional information

Communicated by Prof. T. R. Seshadri,f.a.sc., f.r.s.

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Katyal, M., Singh, R.P. Spectrophotometric determination of thorium using chrysin. Proc. Indian Acad. Sci. 56, 125–129 (1962). https://doi.org/10.1007/BF03045862

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  • DOI: https://doi.org/10.1007/BF03045862

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