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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The adsorption coefficient (log Koc ) of the test item was estimated to be 1.94.

Key value for chemical safety assessment

Koc at 20 °C:

Additional information

No determination of the adsorption coefficient was possible by the HPLC estimation method, as the method is not considered valid for organic acids and also may not be valid for surface active substances. Therefore in place of experimental data, an estimate of the adsorption coefficient was obtained by calculation using Quantitative Structure Activity Relationships (QSAR’s).

The QSAR procedure was considered a more appropriate and valid option for addressing the adsorption coefficient of the test item, as the overall result was obtained from an experimentally determined value of partition coefficient, and the correlation between partition coefficient and adsorption coefficient within the referenced guideline, specifically for the chemical class of organic acids.

[LogKoc: 1.94]