science-softCon uv/vis+ photochemistry database; www.photochemistry.org; (C) science-softCon 2019 Substance: chloroxynil Other Names: benzonitrile, 3,5-dichloro-4-hydroxy- Formula: C7H3Cl2NO CAS-No.: 1891-95-8 Study: molar absortivities Authors: M. Millet, W.-U. Palm, C. Zetzsch Title: Abiotic degradation of halobenzonitriles: Investigation of the photolysis in solution Journal/Source: Ecotox. Environ. Safety, 41, 44-50, (1998); http://dx.doi.org/10.1006/eesa.1998.1665 Data: table, diagram Energy/Wavelength range: 200 - 344 nm Resolution: Temperature: 298 K Temperature dependence: no Pressure/Concentration: Phase: water solution pH: Comments: This paper presents first experiments of laboratory investigations of the photodegradation by direct photolysis (lambda > 290 nm) of cholorotahlonil, dichlobenil, chloroxynil, bromoxynil, and ioxynil in aqueous, pH-buffered, and organic solutions and the calculation of the quantum yields. The quantum yields obtained in water of chloroxynil, bromoxynil, and ioxynil are Phi = 0.0060, 0.0093, and 0.0024, respectively. Author to whom correspondence should be addressed: (e-mail address):