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Vol. 16 No. 3 (2004): Vol 16 Issue 3

Spectrophotometric Study on the Stability Constant of Complex Al3+-Arsenazo-III

Sharmila Pokharna
Department of Chemistry, Malaviya National Institute of Technology, Jaipur-302 015, India
K.D. Gupta
Department of Chemistry, Malaviya National Institute of Technology, Jaipur-302 015, India
Rituraj Mahla
Department of Chemistry, Malaviya National Institute of Technology, Jaipur-302 015, India
Chandni Kirpalani
Department of Chemistry, Malaviya National Institute of Technology, Jaipur-302 015, India

Corresponding Author(s) : K.D. Gupta

Asian Journal of Chemistry, Vol. 16 No. 3 (2004): Vol 16 Issue 3

Abstract

The interaction of aluminium ion (Al3+) with arsenazo-III has been investigated by spectrophotometric technique. Al3+ ion forms a light purple water-soluble complex with arsenazo-III having 1 : 1 metal to ligand ratio with maximum absorbance at 560 nm. The pH range of constant maximum absorbance is between 4 and 5. Their stability constants have been determined by applying mole ratio method, Job's method of continuous variation and Dey and coworkers' method. The value of log K for Al3+ was found to be 5.03. The analytical applications of the colour reaction have also been investigated.

Keywords

Al3 Chelate Arsenazo-III Stability constant
Pokharna, S., Gupta, K., Mahla, R., & Kirpalani, C. (2016). Spectrophotometric Study on the Stability Constant of Complex Al3+-Arsenazo-III. Asian Journal of Chemistry, 16(3), 1765–1768. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/14416
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