Registration Dossier
Registration Dossier
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EC number: 282-762-6 | CAS number: 84418-50-8
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Studies on the adsorption/desorption behaviour of naphthenic acids, zinc salts, basic are not available. Thus, read-across to the assessment entities zinc cations and naphthenate anions is applied since the ions of the substance naphthenic acids, zinc salts, basic determine its fate in the environment. The following partitioning coefficients for zinc are applied: Kp for solid particulate matter and water (Kpsusp): 110000 l/kg, Kp for water and sediment (Kpsed): 73000l/kg, Kd for marine waters: 6010 l/kg, Kd for solids-water in soil: 158.5 l/kg. Regarding naphthenate, a LogKoc of 4.7 is applied in the CSA.
Key value for chemical safety assessment
- Koc at 20 °C:
- 660.69
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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