Decomposition Products ofs-Triazine Herbicides by Electron-Transfer in Acidic Aqueous Media |
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| Authors: | L. Posp?& #x &scaron il,R. Trsková ,S. Zá li&scaron ,M.P. Colombini,R. Fuoco |
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| Affiliation: | aJ. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, 18223, Prague, Czechland;bDipartimento di Chimica e Chimica Industriale, Università degli Studi di Pisa, via Risorgimento 35, 56126, Pisa, Italy |
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| Abstract: | The reduction of atrazine and terbutylazine was preceded by protonation equilibrium. Three protonation sites of thes-triazine molecule determined the structure of the final reduction product. Protonation was investigated by the change of UV–Vis spectra. Two slightly different pKs corresponding to protonation on N5 and N1 heteroatoms were evaluated. The principal reduction pathway involved the cleavage of a chlorine atom. A small quantity of desethylatrazine was detected in the most acidic media. |
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