Registration Dossier
Registration Dossier
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EC number: 200-913-6 | CAS number: 75-89-8
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The QSAR-predicted Koc of trifluoroethanol ranges between 4.14 and 5.50. The average Koc value is 4.8 (Log Koc 0.68).
Key value for chemical safety assessment
- Koc at 20 °C:
- 4.8
Additional information
In accordance with column 2 of REACH Annex VIII, the adsorption/desorption test (required in § 9.3.1) does not need to be conducted as the substance can be expected to have a low potential for adsorption. Trifluoroethanol has indeed a low octanol water partition coefficient (log Kow <0.3). However, a Koc value is required for the estimation of several PNEC values. Therefore the organic carbon-water partitioning coefficient (Koc) was predicted using the KOCWIN v2.0 modelling program published by the US Environmental Protection Agency. The calculated Log Koc values ranged between 0.62 and 0.74. According to chapter R.7.8.7 of the Guidance on information requirements and chemical safety assessment, a substance with a Koc in this range can be considered as not likely to be adsorbed to sediment.
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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