Registration Dossier

Environmental fate & pathways

Adsorption / desorption

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Link to relevant study record(s)

Description of key information

DETERMINATION OF PHYSICO-CHEMICAL PROPERTIES  OF 4,4’-DDS by Dr Ir. E. Baltussen, 2011.
Study performed according to OECD and EC guidelines and in compliance with GLP principles.

Key value for chemical safety assessment

Koc at 20 °C:
57

Additional information

The HPLC method using soil-adsorption-reference data was applied for the determination of the adsorption coefficient (Koc) of 4,4'-DDS. At a neutral pH and 35 deg. C, the estimated Koc and log Koc values (soil) of the test substance are respectively 57 and 1.76.

[LogKoc: 1.76]