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Abstract

SPECTROPHOTOMETRIC DETERMINATION OF Fe (II) BY ISOCINCHOMERIC ACID - A STUDY OF SYNTHESIS AND CHARACTERIZATION

Chauhan Jayprakash S. and Pandya Ajit V*

ABSTRACT

A new spectrophotometric method is developed for the determination of Fe (II) in an aqueous solution. The metal ion forms a red colored complex with pyridine 2, 5 dicarboxylic acid in the pH 4.0 to 7.0. The complex shows maximum absorbance at 492 nm. Job’s method for continuous variation and mole ratio method shows metal ligand ratio in the complex to be 1:2. The complex is stable for days. The red colored complex obeys the Beer’s law in the concentration range of 225 to 500  gs of iron. The molar absorptivity ( ) is found to be 1.55 x 102 lmole-1cm-1. The method has been used for the determination of Fe+2 in synthetic samples. The complex has been synthesized and FTIR studies have been carried out.

Keywords: Pyridine2, 5 di carboxylic acid, Fe (11), spectrophotometry.


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