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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Environmental fate & pathways

Adsorption / desorption

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Description of key information

The adsorption coefficient (Koc) of the test material has been determined to be 296, log10 Koc 2.47.
(Please note the value entered into the result box below is for the Koc at a temperature of 30 deg C and not 20 deg C).

Key value for chemical safety assessment

Koc at 20 °C:

Additional information

A Koc of 296 and a log10 Koc of 2.47 was determined for the test material, using the HPLC screening method, Method C19 of Commission Directive 2001/59/EC.

The method guideline states that the measurement of adsorption coefficient should be carried out on substances in their ionised and unionised forms. However, the dissociation constants of certain functional groups found in the test material made it impossible to satisfy this criterion. Testing would be required at greater than pH 14 to obtain the test material in its ionised form. As a consequence of this, the functional groups will always be present in their unionised forms. Therefore, as pH 14 or above is outside the environmental pH range for this test and also experimentally impractical, testing was carried out at approximately neutral pH with the functional group unionised (the predicted values of pKa were obtained using the ACD/I-Lab Web Service (ACD/pKa 8.03)).

[LogKoc: 2.47]