Registration Dossier
Registration Dossier
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EC number: 270-064-4 | CAS number: 68409-80-3
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Based on the solubility of fatty acids, C6-19-branched, calcium salts in water, a complete dissociation of fatty acids, C6-19-branched, calcium salts may be assumed. Upon dissolution, calcium and C6-19-branched fatty acid ions, the latter represented by read-across to the structural analogue neodecanoic acid, therefore determine the environmental fate of fatty acids, C6-19-branched, calcium salts. Calcium is highly mobile under all environmental conditions and occurs in solution as dissociated Ca2+ ions. A European median log Kp value of 2.73 L/kg is derived for sediment-water partitioning, and calcium is expected to be highly mobile in suspended matter and soil. For neodecanoic acid (representative for C6-19-branched fatty acids), the soil adsorption coefficient Koc was estimated using KOCWIN with 121 and may be sensitive to pH. Therefore, fatty acids, C6-19-branched, calcium salts may be assumed to be mobile under environmental conditions.
Key value for chemical safety assessment
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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