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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 240-505-5 | CAS number: 16455-61-1
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
- Type:
- log Pow
- Partition coefficient:
- < -4.2
- Temp.:
- 23 °C
- Remarks on result:
- other: estimated from the single solubilities in n-octanol and in water
- Conclusions:
- The solubility of the test item in n-octanol is insufficient (< 10 mg/l), therefore the determination of log Pow corresponding to OECD Guideline for the Testing of Chemicals 107 (shake flask method) is not feasible. As the test item is also not feasible for the HPLC-method (OECD Guideline for the Testing of Chemicals 117), because it consists of a complex mixture (UVCB substance), the log Pow can only be estimated from the solubilities of the test item in water and in n-octanol and can be considered as < - 4.2 at 23 °C.
Reference
The solubility of the test item in n-octanol is insufficient (< 10 mg/l), therefore the determination of log Pow corresponding to OECD Guideline for the Testing of Chemicals 107 (shake flask method) is not feasible. As the test item is also not feasible for the HPLC-method (OECD Guideline for the Testing of Chemicals 117), because it consists of a complex mixture (UVCB substance), the log Pow can only be estimated from the solubilities of the test item in water and in n-octanol and can be considered as < - 4.2 at 23 °C.
Description of key information
The solubility of the supporting substance Fe(Na)EDDHA (CAS 84539 -55 -9) in n-octanol is insufficient (< 10 mg/l), therefore the determination of log Pow corresponding to OECD Guideline for the Testing of Chemicals 107 (shake flask method) is not feasible. As the test item is also not feasible for the HPLC-method (OECD Guideline for the Testing of Chemicals 117), because it consists of a complex mixture (UVCB substance), the log Pow can only be estimated from the solubilities of the test item in water and in n-octanol and can be considered as < - 4.2 at 23 °C.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- -4.2
- at the temperature of:
- 23 °C
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.
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.
