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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

A log Koc of 2.15 (141 l/kg) can be taken as representative for tetrachloroethylene.

Key value for chemical safety assessment

Koc at 20 °C:
141

Additional information

The available measured values for the Koc range from 40.7 to 525. Rather than to try to derive a single value from the available data or select one of these values as the key parameter, the Koc value calculated from the octanol-water partitioning coefficient (log Kow = 2.53) using the equation from the TGD (hydrophobics). This results in a Koc value of 141 l/kg (log value is 2.15), which is taken as the key parameter.