Applied Chemical Engineering

Kinetics of dechlorination of atrazine using tin (SnII) at neutral pH conditions

Vijay Kumar

Regional Ayurveda Research Institute for Drug Development, Gwalior

Simranjeet Singh

Department of Biotechnology, Lovely Professional University, Punjab

DOI: https://doi.org/10.24294/ace.v3i1.575

Keywords: Atrazine, Dechlorination, Decomposition, IR Analysis, Mass Analysis

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Abstract

Atrazine is a broad spectrum herbicide of triazine family. It is a chlorine-containing molecule and it can persist in environment. Chemical and biochemical techniques are the main techniques used to decompose the chemicals. In pre-sent study, the dechlorination of atrazine (Atr) via reaction with Sn(II) ion under aqueous media at neutral pH condi-tions was studied. The observed dechlorinated metabolite was 4-Ethylamino-6-isopropylamino-[1,3,5]triazin-2-ol. Identification of dechlorinated product of Atr was performed by using spectroscopic (FTIR) and mass (ESI-MS) spectrometric analysis. The kinetics of the dechlorination of Atr was measured by using pseudo-first order kinetics. The observed reaction constants was, kobs = 6.11x10-2 (at 430 mg/ L of Atr), and kobs = 6.14 x10-2 (at 215 mg/ L of Atr). The calculated half-life (t1/2) period was, t1/2 = 0.204 d (at 430 mg/ L of Atr), and t1/2 = 0.205 d (at 215 mg/ L of Atr).

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Author Biography

Vijay Kumar, Regional Ayurveda Research Institute for Drug Development, Gwalior

Dr. Vijay Kumar
(Ph.D. / M.Sc.(Hons) / CSIR-NET/ GATE / RGNF)
Research Officer (Chemistry) / Scientist

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