Registration Dossier
Registration Dossier
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EC number: 244-527-6 | CAS number: 21679-46-9
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- other: Des données mesurées et estimées sont prises en compte
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: Voir section "Principles of method if other than guidelines"
- Principles of method if other than guideline:
- Parce que les données sont tirées du logiciel US EPA EPI Suite, il n'y a pas de méthode à décrire.
- GLP compliance:
- not specified
- Type of method:
- calculation method (fragments)
- Partition coefficient type:
- octanol-water
- Specific details on test material used for the study:
- Pas applicable
- Analytical method:
- other: Pas applicable
- Type:
- log Pow
- Partition coefficient:
- -1.1
- Temp.:
- 20 °C
- pH:
- 7
- Remarks on result:
- other: Calculé comme stucture totale et non ionique (US EPA 2018)
- Remarks:
- La valeur intègre les deux parties (cationique et anionique) de la substance à enregistrer
- Key result
- Type:
- log Pow
- Partition coefficient:
- >= 0.34 - <= 0.4
- Temp.:
- 20 °C
- pH:
- 7
- Remarks on result:
- other: Cette valeur (OECD 2001) fait référence à la partie organique de la substance mesurée comme le Koe de l’acétylacétone (CAS 123-54-6).
- Remarks:
- Considérée comme représentant au mieux la lipophilicité de la substance à enregistrer.
- Details on results:
- Pas applicable
- Endpoint:
- partition coefficient
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- the study does not need to be conducted because the substance is inorganic
- other:
Referenceopen allclose all
Description of key information
La substance à enregistrer se distribue entre l’eau et l’octanol de manière indépendante après sa dissociation. Alors que les cations métalliques de Cobalt restent totalement dans la phase aqueuse, la partie organique s’équilibre entre espèces chargées et neutres et donc se distribue donc dans les deux phases (eau et octanol). Dans l’évaluation et la modélisation de l’exposition, le Koe de l’acétylacétone (CAS 123-54-6) doit donc être utilisé dans une approche du scénario le plus pessimiste. Cependant, le cation métallique doit être considéré séparément quand cela est approprié.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 0.4
- at the temperature of:
- 20 °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.
