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Vol. 29 No. 1 (2017): Vol 29 Issue 1

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Trace Determination of Tin(II) Using 6-Chloro-3-hydroxy-2-{(E)-1'-methyl-2'-phenylvinyl}-4-oxo-4H-1-benzopyran as Analytical Reagent

https://doi.org/10.14233/ajchem.2017.20135
Ambika Kumari1
1Department of Chemistry, Maharishi Markandeshwar University, Mullana-133 207, India 2University Institute of Engineering and Technology, Kurukshetra University, Kurukshetra-136 119, India *Corresponding author: E-mail: nivagni11@gmail.com; niveditachem@mmumullana.org
Urmila Berar2
1Department of Chemistry, Maharishi Markandeshwar University, Mullana-133 207, India 2University Institute of Engineering and Technology, Kurukshetra University, Kurukshetra-136 119, India *Corresponding author: E-mail: nivagni11@gmail.com; niveditachem@mmumullana.org
R. Agnihotri2
1Department of Chemistry, Maharishi Markandeshwar University, Mullana-133 207, India 2University Institute of Engineering and Technology, Kurukshetra University, Kurukshetra-136 119, India *Corresponding author: E-mail: nivagni11@gmail.com; niveditachem@mmumullana.org
N. Agnihotri1
1Department of Chemistry, Maharishi Markandeshwar University, Mullana-133 207, India 2University Institute of Engineering and Technology, Kurukshetra University, Kurukshetra-136 119, India *Corresponding author: E-mail: nivagni11@gmail.com; niveditachem@mmumullana.org

Asian Journal of Chemistry, Vol. 29 No. 1 (2017): Vol 29 Issue 1

Abstract

6-Chloro-3-hydroxy-2-{(E)-1'-methyl-2'-phenylvinyl}-4-oxo-4H-1-benzopyran (CHMPB) solution in ethanol forms a yellow coloured (1:1) complex with tin(II) in hydrochloric acid medium which is extractable into dichloromethane after equilibration. During study on this complex, it is found to be quite stable, obeying Beer’s law. Interaction is studied with various ions and molar absorptivity, Sandell’s sensitivity, standard deviation, regression coefficient, linear regression equation and detection limit are also investigated. Job’s method and mole ratio method are used to study stoichiometry of the complex. The method is simpler, more accurate, sensitive, rapid and selective as compared to existing methods and is applicable to analysis of various synthetic samples of varied composition and industrial sample like gun metal.

Keywords

Tin(II) 6-Chloro-3-hydroxy-2-{(E)-1'-methyl-2'-phenylvinyl}-4-oxo-4H-1-benzopyran Spectrophotometric determination.
Kumari1, A., Berar2, U., Agnihotri2, R., & Agnihotri1, N. (2016). Trace Determination of Tin(II) Using 6-Chloro-3-hydroxy-2-{(E)-1’-methyl-2’-phenylvinyl}-4-oxo-4H-1-benzopyran as Analytical Reagent. Asian Journal of Chemistry, 29(1), 76–80. https://doi.org/10.14233/ajchem.2017.20135
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