Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

There are no experimental data on environmental distribution of ethylbenzene. QSAR modeling predicts that ethylbenzene will volatize rapidly from surface water with TD50 = 0.05 days (river) and 4.11 days (lake).


The low value for soil organic carbon-water partition coefficient (logKoc <3) suggests that ethylbenzene will not adsorb onto soil and sediment and, therefore, together with its high volatility, will not persist in these environmental media.


The data on environmental distribution of ethylbenzene obtained from the level III fugacity model suggest that ethylbenzene will not persist in the environment and depending on various emission scenarios, approx. 70% of ethylbenzene will be degraded by both biotic and abiotic mechanisms and approx. 30% will be physically removed (advected) from the environment.