Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 939-682-8 | CAS number: -
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Adsorption/desorption is not expected (calculated log Koc = 2.4; measured log Kow = 2.73).
Key value for chemical safety assessment
- Koc at 20 °C:
- 275
Additional information
According to column 2 of EC 1907/2006 Annex VIII the testing on “Adsoption/Desorption” does not need to be conducted if the substance has a low potential for adsorption (e.g. the substance has a low Kow) or if the substance and its degradation products decompose rapidly. Based on a measured log Kow ≤ 3 the potential for adsorption of the substance is quite low. Hence, testing of the adsorption and desorption is not required.
However, to estimate PNEC sediment and soil by the equilibrium partitioning method data of the sorption behaviour of the substance are needed. Since measured sorption values are not available for the substance the Koc was calculated using the QSAR tool EUSES.
Based on an experimental determined log Kow value of 2.73 the calculated log Koc value for the substance is 2.4 (corresponding Koc = 275 L/kg).
[LogKoc: 2.4]
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
