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 present study, the dechlorination of atrazine (Atr) via reaction with Sn(II) ion under aqueous media at neutral pH conditions 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, k obs = 6.11x10 -2 (at 430 mg/ L of Atr), and k obs = 6.14 x10 -2 (at 215 mg/ L of Atr). The calculated half life (t 1/2 ) period was, t 1/2 = 0.204 d (at 430 mg/ L of Atr), and t 1/2 = 0.205 d (at 215 mg/ L of Atr).
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