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EC number: 701-362-9 | CAS number: -
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
The octanol/water partition coefficient of a complex reaction product was experimentally measured in accordance with OECD testing guideline 117 and GLP requirements. 93.5% of the components of this UVCB have Log Pow ranged from 3.66 to 4.16.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 4.16
Additional information
To appraise the octanol/water partition coefficient of a complex reaction product (Ethoxylated bisphenol A diacrylate), this endpoint was experimentally measured in accordance with OECD testing guideline 117 and GLP requirements
A range of octanol/water partition coefficient values at pH 6.44 was obtained: <2.45 to 4.16. 93.5% of the components of this UVCB have Log Pow ranged from 3.66 to 4.16.
The chromatogram obtained by HPLC showed four peaks with three representing each between 12.2% and 42.2% of the total area under the curve and together 93.5% of all the UVCB. The other peak covered then less than 10% of the total area under the curve. Therefore, these three peaks representing the most abundant components of this complex reaction product (>>10%), the highest log value (4.16) in this range was used for chemical safety assessment (CSA). The highest value was considered as a worst-case value, increase of n-octanol/water partition coefficient value leading to a significant increase of Predicted Environmental Concentration in sediments and soil.
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