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New Analytical Technique for the Determination of Mercury (II) by Extraction Spectrophotometric Method with Potassium Benzyl Xanthate in Sewage Wastes and Spiked Water Samples


Affiliations
1 Deptt. of Chemistry, GITAM Institute of Technology, GITAM University, Visakhapatnam-530 045, Andhra Pradesh, India
 

A new simple and sensitive extractive spectrophotometric method for the determination of mercury (II) with potassium benzyl xanthate (KBX) has been developed. Mercury was complexed with KBX to form light yellow colour Hg-KBX complex and was extracted in to methyl isobutyl ketone (MIBK). The complex has maximum absorbance at 375nm. The molar absorbitivity and Sandell's sensitivity of the complex was 2.609×10-3 L.mole-1.cm-1 and 1.673×10-2μg/cm2 respectively. The developed method obeys Beer's law in the concentration range of 1.0 to 20 ppm. The composition of the complex (metal:ligand) was 1:2. The developed method was applied for the determination of mercury in sewage waste and spiked water samples.

Keywords

Analytical Technique, Chemical Extraction, Mercury (II), Sewage Wastes.
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  • New Analytical Technique for the Determination of Mercury (II) by Extraction Spectrophotometric Method with Potassium Benzyl Xanthate in Sewage Wastes and Spiked Water Samples

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Authors

B. Sreenivasa Rao
Deptt. of Chemistry, GITAM Institute of Technology, GITAM University, Visakhapatnam-530 045, Andhra Pradesh, India

Abstract


A new simple and sensitive extractive spectrophotometric method for the determination of mercury (II) with potassium benzyl xanthate (KBX) has been developed. Mercury was complexed with KBX to form light yellow colour Hg-KBX complex and was extracted in to methyl isobutyl ketone (MIBK). The complex has maximum absorbance at 375nm. The molar absorbitivity and Sandell's sensitivity of the complex was 2.609×10-3 L.mole-1.cm-1 and 1.673×10-2μg/cm2 respectively. The developed method obeys Beer's law in the concentration range of 1.0 to 20 ppm. The composition of the complex (metal:ligand) was 1:2. The developed method was applied for the determination of mercury in sewage waste and spiked water samples.

Keywords


Analytical Technique, Chemical Extraction, Mercury (II), Sewage Wastes.