Registration Dossier
Registration Dossier
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EC number: 221-897-7 | CAS number: 3271-76-9
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
The partition coefficient (n-octanol/water) of the test item was estimated based on the ratio of the individual solubilities of the test item in water and n-octanol. Although according the log Kow calculation, the correct method for determination of the partition coefficient would be HPLC, the solubilities were determined according to the flask method, as due to the insolubility of the test substance in water and organic solvents, no analytical method for the quantification of the test substance is available. The shake flask method was based on the value of dissolved TOC in water and the solubility in n-octanol by argentometric determination of the chlorine contained in the test item. Thus the determined log Kow was >=2.3. As this result was not scientifically reasonable, and the water solubility contains not only the test item, but all impurities containing carbon, the partition coefficient of the test item was calculated with KOWWIN v1.68 included in EpiSuite 4.1.
It was calculated to be log Kow = 8.5
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 8.5
- at the temperature of:
- 25 °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.
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