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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Adsorption / desorption

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Administrative data

Link to relevant study record(s)

Description of key information

The Koc and log Koc of  1,2,4-trimethylbenzene were calculated to be 1097 and 3.04 respectively.

Key value for chemical safety assessment

Koc at 20 °C:
1 097

Additional information

No reliable experimental study was identified therefore, Koc and Log Koc were calculated using the Log Kow of 3.63 in accordance with the method defined in the TGD. This method is deemed reliable and acceptable for assessment for this endpoint. Supporting study also available USEPA report (1994).