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EC number: 241-543-5 | CAS number: 17572-97-3
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
octanal-water partition coefficient of K3EDTA: at 25°C and pH 4.5
Key value for chemical safety assessment
- Log Kow (Log Pow):
- -4.3
- at the temperature of:
- 25 °C
Additional information
For the related substance disodium dihydrogen ethylenediaminetetraacetate a octanol-water partition coefficient of -4 .3 at 25°C, pH 4.5 was determined in a study which was conducted according to scientifically acceptable methods. A partition coefficient value of -11.7 at 25°C without pH specified for disodium dihydrogen ethylenediaminetetraacetate was sourced from a peer-reviewed database, using an appropriate calculation method.
Due to the similar dissociation of the potassium salt compared to the sodium salt only small amounts of the
ethylenediaminetetraacetate anion
are dissolved in the octanol, the concentration of which is strongly pH dependent. A dependence on the cation is not expected therefore read-across for this endpoint is scientifically justified.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.
