Registration Dossier
Registration Dossier
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EC number: 242-538-0 | CAS number: 18727-04-3
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
log D: -1.695 at pH 4;
-1.640 at pH 7;
-1.640 at pH 9.
Key value for chemical safety assessment
Additional information
The substance is an organic salt, in which the cation (Co2+) in n-octanol could not be analysed. An accurate experimental determination of log Kow is not possible, therefore a calculation of log D instead of log Kow is considered as an appropriate method.
Nevertheless the partition coefficient of the substance was also determined with HPLC method according to OECD Method 117, the results proved that this method is not appropiate for metal-organic components as mentioned in description of the method. Additionally the quantitative determination was done outside of the range of measurement (before the deathtime peak was detected), therefore this determination of the partition coefficient was considered as not reliable, the values are only mentioned for completeness.
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