Simple Method f or Spectrophotometric Determination o f Benzidine i n Aqueous Solutions b y Coupling w ith Β - Naphthol

Authors

  • Ameera H Hamed Department of Chemistry, College of Science for Women, University of Baghdad, Baghdad - Iraq.

Keywords:

Determination Benzidine, Diazo Coupling Reaction, β-naphthol

Abstract

Anew simple and rapid colorimetric method has been developed for the determination of benzidine in aqueous solutions. The method is based on the formation of a pink colored azo dye by diazotization of benzidine, followed by a diazo-coupling reaction between the resulting product and β-naphthol. The maximum absorbance of azo dye at 525 nm. Beer's law was found to be obeyed in the concentration range of 0-12 µg. ml1 with molar absorptivity 12360 L. mol1. cm1. The optimum reaction conditions and other analytical parameters were evaluated.

 

Published

2018-07-27

Issue

Section

Articles

How to Cite

(1)
Simple Method F or Spectrophotometric Determination O F Benzidine I N Aqueous Solutions B Y Coupling W Ith Β - Naphthol. ANJS 2018, 14 (2), 43-50.