Registration Dossier
Registration Dossier
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EC number: 225-218-5 | CAS number: 4724-48-5
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The adsorption coefficient (log Koc ) of the test item was estimated to be 1.94.
Key value for chemical safety assessment
- Koc at 20 °C:
- 87.1
Additional information
No determination of the adsorption coefficient was possible by the HPLC estimation method, as the method is not considered valid for organic acids and also may not be valid for surface active substances. Therefore in place of experimental data, an estimate of the adsorption coefficient was obtained by calculation using Quantitative Structure Activity Relationships (QSAR’s).
The QSAR procedure was considered a more appropriate and valid option for addressing the adsorption coefficient of the test item, as the overall result was obtained from an experimentally determined value of partition coefficient, and the correlation between partition coefficient and adsorption coefficient within the referenced guideline, specifically for the chemical class of organic acids.
[LogKoc: 1.94]
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