Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Low potential for adsorption.
Key value for chemical safety assessment
- Koc at 20 °C:
- 0.659
Other adsorption coefficients
- Type:
- other: Solids-water partition coefficient
- Value in L/kg:
- 0.22
Other adsorption coefficients
- Type:
- other: Suspended matter-water partition coefficient
- Value in L/kg:
- 0.916
Additional information
Based on the physicochemical properties, the substance is expected to possess a low potential for adsorption: it is characterized by a negative octanol water partition coefficient, due to the high capability to dissolve in water phase.
A study was conducted to estimate the adsorption coefficient, Koc, of the test item using HPLC method, according to the OECD guideline 121. The calibration range includes substances with log Koc values ranging from 1.25 to 3.65. Retention times measured for the test item resulted to be lower than the retention time of the first eluting standard Acetanilide; thus, the log Koc of test item resulted to be lower than 1.25.
The log Koc and the partition coefficients necessary for the PNECs calculation (PNEC sediment freshwater, PNEC sediment marine and PNEC soil) were estimated using the EUSES 2.1.2 tool*; the organic carbon-water partition coefficient has been estimated 0.659 l/kg (log Koc: -0.18).
* European Union System for the Evaluation of Substances (EUSES) version 2.1
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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