Photostability of hydroxyoxime extractants of metals 1. Photo-isomerization and photo-degradation of 2-hydroxy-5-methylbenzophenone (E)-oxime

Add time:07/31/2019    Source:sciencedirect.com

The photo-isomerization and photo-degradation of 2-hydroxy-5-methylbenzophenone (E)-oxime in ethanol, octane, toluene and a mixture of octane and toluene under exposure to daylight and UV light is studied. 2-Hydroxy-5-methylbenzophenone (Z)-oxime, 2-hydroxy-5-methylbenzophenone, 2-phenyl-5-methylbenzoxazole, 3-phenyl-5-methylbenzisoxazole, N-(2-hydroxy-5-methylphenyl)benzamide and N-phenyl-2-hydroxy-5-methylbenzamide were detected as products of the photo-isomerization/photo-degradation. These products can affect the extraction results of equilibrium and kinetic studies.

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