Phototransformation of 3,5-dihalogeno-4-hydroxybenzonitriles (ioxynil and chloroxynil) in aqueous solution

Autor:	Tahar Sehili, Bernadette Lavédrine, Pierre Boule, Moulay Abderrahmane Malouki, Abdennour Zertal
Rok vydání:	2004
Předmět:	inorganic chemicals Aqueous solution Chemistry General Chemical Engineering Photodissociation Halogen General Physics and Astronomy Photochemical reactivity General Chemistry Irradiation Photochemistry Chloroxynil
Zdroj:	Journal of Photochemistry and Photobiology A: Chemistry. 168:15-22
ISSN:	1010-6030
DOI:	10.1016/j.jphotochem.2004.05.007
Popis:	The main initial photochemical reaction of ioxynil and chloroxynil in pure water is the photohydrolysis of C–halogen bond, leading, in both cases, to a monohalogenated dihydroxybenzonitrile. Reduction is observed as a minor pathway, especially when irradiation is carried out in the presence of humic acids. In a second stage, similar reactions occur with the remaining C–halogen bond. The photochemical reactivity is not significantly affected by the nature of the halogen Cl, Br or I.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::583829e6325798529b33ffd5ee668ed0 https://doi.org/10.1016/j.jphotochem.2004.05.007 Zobrazit plný text záznamu Full Text from ScienceDirect