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EC number: 905-588-0
CAS number: -
The log Koc of o-xylene estimated using a HPLC method is 2.73.
The log Kow of the xylene isomers and ethylbenzene ranges from 3.12 to
3.2 which suggests that they have the potential to sorb to soil and
sediment. A reliable adsorption/desorption study with xylene or one of
the other streams in this category as the test substance was not
identified. However, a study using o-xylene that was conducted to a
method equivalent to OECD 121 was obtained (Hodson et al 1988). A
range of compounds for which reliable K and Koc values were available
were used to generate a regression equation that related retention time
on the HPLC column to Koc value. This allowed the Koc of o-xylene to be
estimated based on the measured K value. The log Koc of o-xylene fell
within the calibration range. Based on similar physico-chemical
properties, this value is considered appropriate for read across to all
streams in this category.
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