A Simple and Effective Spectrophotometric Method for the Determination of Iron(III) with Res–Acetophenone Guanylhydrazone (Rag)

VITTHAL A. DIVATE; PARAMANAND S. MANOLI; SAVITA R. DHONGADE

Volume : III, Issue : VII, July - 2014

A Simple and Effective Spectrophotometric Method for the Determination of Iron(III) with Res–Acetophenone Guanylhydrazone (Rag)

Vitthal A. Divate, Paramanand S. Manoli, Savita R. Dhongade

Abstract :

We report here a new simple effective spectrophotometric method for the determination of Iron(III) with Res-acetophenone guanylhydrazone [RAG]. A standard procedure of the adsorption spectra of the reagent and the complex is recommended. The absorbance measurements are carried out at 520 nm [Molar extinction co-efficient is 0.4033 x 104 lit. mole cm-1] at pH 7.6. Beer�s law is valid up to 10.0 ppm. Sandell�s sensitivity of the method is 0.1164 �g/cm2. The Job�s variation and mole ratio method show that the composition of Fe(III) RAG complex is 1:2. The instability constant is 0.1289 x10-8. The method is applied for the determination of iron in cupranickel alloy and synthetic mixtures.