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Journal of Applied Spectroscopy

, Volume 80, Issue 6, pp 983–990 | Cite as

Extraction by Cyanex 302 and Spectrophotometric Estimation of Fe(III)

  • R. K. Biswas
  • M. R. Ali
  • A. K. Karmakar
  • M. Asadujjaman
Article

Aqueous Fe3+ can be quantified spectrophotometrically at 360 and 500 nm following its quantitative extraction from SO4 2– medium by Cyanex 302. Beer’s law is followed (up to 50 ppm Fe3+) provided (i) a 5 min phase agitation is used, (ii) aqueous pH(ini) in extraction is kept at 2.9 ± 0.05, and (iii) [Cyanex 302] = 0.30% (v/v). The color is stable for at least 2 months. The estimated ε360nm and ε500nm are 1820 and 970 l/mol∙cm, respectively. The tolerance limits of some cations and anions have been determined. The method has been applied in the analysis of some metallurgical samples.

Keywords

extraction spectrophotometric estimation Fe3+ estimation Cyanex 302 kerosene 

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • R. K. Biswas
    • 1
  • M. R. Ali
    • 1
  • A. K. Karmakar
    • 1
  • M. Asadujjaman
    • 1
  1. 1.Rajshahi UniversityRajshahiBangladesh

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