• 2-Hydroxy-l-naphthaldehyde guanylhydrazone as analytical reagent for spectrophotometric estimation of vanadium

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    • Keywords


      Vanadium(V); spectrophotometric determination; 2-hydroxy-1-naphthal-dehyde guanylhydrazone

    • Abstract


      A spectrophotometric determination of V(V) with 2-hydroxy-1-naphthaldehy-de guanylhydrazone can be performed in a concentration range varying from 0.70–8.70 ppm of vanadium; the molar absorptivity is 7.7 ×l03 litres mol−1 cm−1 at 405 nm and the relative error is ±0.60. The stoichiometry (1: 1) of the complex was established by different methods. This method of spectrophotometric determination has been applied satisfactorily to the determination of vanadium in steel.

    • Author Affiliations


      F Salinas1 J J Berzas Nevado1 A Espinosa1

      1. Department of Analytical Chemistry, Faculty of Science, University of Extremadura, Badajoz - 06071, Spain
    • Dates

  • Journal of Chemical Sciences | News

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