Registration Dossier
Registration Dossier
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EC number: 204-679-6 | CAS number: 124-09-4
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
Log Kow = 0.4 (unionised form, at pH >= 13)
Log D=-3.75 at pH=7.5 (ERA)
Low potential for bioaccumulation.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 0.4
- at the temperature of:
- 25 °C
Additional information
An experimental study was provided, however it was considered as not reliable since it was conducted at pH below the pKa, where the substance is not unionised.
Therefore a weight-of evidence was based on the SPARC model, able to calculate the log D (distribution coefficient) as a function of pH, and a robust publication on Log Pow calculation (QSAR).
For the unionised form, as log Kow is defined, the retained value will be the mean of the two results.
As the unionised form is not relevant at environmental pH range, for the risk assessment, the SPARC estimated value will be retained for pH=7.5, as this is the most expected pH value after STP treatment.
This information is considered to be sufficient for classification and risk assessment purpose.
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.
