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Spectrophotometric determination of zirconium and other colour reactions by galangin

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Summary

The spectrophotometric determination of zirconium is described, based on the formation of a yellow coloured complex between zirconium and galangin. Maximum absorption by the reaction product only at one specific wavelength (410 mµ) in the acidity range of 0·5 N-HCl to pH 4·5, suggests the formation of only one complex. The complex, not extractable by usual organic solvents, has been studied in 40% alcoholic medium. It obeys Beer’s law from 1 to 6 p.p.m. of metal ion concentration and contains the two components in the molar ratio of 1:1. The effect of the reagent on other ions has been qualitatively studied. Also, the effect of foreign ions on the complex has been investigated.

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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.r.s., f.a.sc.

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Katyal, M., Singh, R.P. Spectrophotometric determination of zirconium and other colour reactions by galangin. Proc. Indian Acad. Sci. 57, 259–265 (1963). https://doi.org/10.1007/BF03046338

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  • DOI: https://doi.org/10.1007/BF03046338

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