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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Koc = 316 - 446; log Koc = 2.5 - 2.65 (experimental data)

Key value for chemical safety assessment

Koc at 20 °C:

Additional information

In a key study by Marchesi et al.(1991) the test substance is indicated to be of low sorption potential with an estimated Koc value of 316 to 446 which corresponds to log Koc values in the range of 2.50 to 2.65. For the PNEC sediment and soil derivation, according to the equilibrium partitioning method (EPM), the lower boundary of the range (Koc = 316) was taken into account, since this value represents the worst case scenario for the chemical safety assessment.

In a supporting publication by Marshall et al. (2000), the water-sediment partition coefficient (kd) for the test substance was determined as 30.78 L/kg in a cylindric adsorption apparatus using humic acid recoated organic free sediments. Assuming % Org. C: 16 a Koc value of 192.39 could be calculated (log koc = 2.28).

[LogKoc: 2.5]