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Environmental fate & pathways

Adsorption / desorption

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Description of key information

The substance has only a low soil adsorption potential, a relevant adsorption to soil is not to be expected based upon the log Koc (SRC PCKOCWIN v1.66; 2009).

Key value for chemical safety assessment

Koc at 20 °C:
252

Additional information

The log Koc was calculated to be 2.4 corrosponding to a Kow = 252 (SRC PCKOCWIN v1.66; 2009). In a publication from Dannenfelser (1991) log Koc values of 2.68 (Kow = 479) and 2.52 (Kow = 331) were reported for Chlorobenzene and the BUA report cited an experimental log Koc value of 2.18 (Kow = 151). In addition 4 calculated log Koc in the range 2.18 - 2.57 (Kow = 151 - 372) are reported in the BUA report. Therefore, the substance has only a low soil adsorption potential, a relevant adsorption to soil is not expected. Based on the available information the PCKOCWIN v1.66 calculated value of log Koc = 2.4 represents a reliable value which was used for the chemical safety assessment.