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Environmental fate & pathways

Adsorption / desorption

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Description of key information

The adsorption/desorption coefficient of polysulfide di-tert-nonyl has been read across from polysulfide di-tert-dodecyl. The log Koc of the test item is above the highest value of the reference items (4.09) and was extrapolated to a value of 8.5.

Key value for chemical safety assessment

Koc at 20 °C:
316 227 766

Additional information

The adsorption/desorption coefficient of polysulfide di-tert-nonyl has been read across from polysulfide di-tert-dodecyl. Mollandin (2010) is a GLP-compliant study following OECD guideline 121. As no reference data were available with results above the obtained value, the log Koc of the test substance has been extrapolated. This is supported by a QSAR value (USEPA 2009).