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EC number: 905-588-0
CAS number: -
The estimated half life of the xylene isomers and ethylbenzene is about 1-2 days based on a recommended reaction rate with hydroxyl radicals and the concentration of hydroxyl radicals recommended in the ECHA guidance (2010).
The xylene isomers and ethylbenzene are expected to degrade by indirect
photolysis in air. The dominant process is by reaction with hydroxyl
radicals. Using rate constants recommended by Atkinson (1985) for the
reaction rate with hydroxyl radicals half lives of around 1 -2 days are
calculated for each of the xylene isomers and ethylbenzene. These data
indicate that indirect photolysis is expected to be a significant route
of removal from the environment.
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