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Environmental fate & pathways

Adsorption / desorption

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Description of key information

The adsorption coefficient (logKoc) of the test item is 6.2, measured at 25 °C and pH 6.  

Key value for chemical safety assessment

Koc at 20 °C:
1 584 893

Additional information

This endpoint was covered by read-across of a study of 1,4-bis[(2-ethyl-6-methylphenyl)amino]anthraquinone. This read-across is justified as both substances have very similar chemical structures, the main physicochemical parameters (vapour pressure, water solubility and dissociation constant) are in the same range and further all available toxicological studies for both substances revealed the same results. Therefore a read-across for other physicochemical, ecotoxicological or toxicological endpoints seems to be justified. More details about the read-across justification are displayed in a detailed document attached to the Annex of the CSR.

[LogKoc: 6.2]