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Phenol, paraalkylation products with C12-rich branched olefins derived from propene oligomerisation, reaction products with sulphur monochloride and decene, reaction products with Benzoic acid, 2-hydroxy-,C14-18 alkyl dervis., polybutenyl benzenesulphonic acid, carbon dioxide and calcium hydroxide
EC number: 903-162-9 | CAS number: -
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
The test material was estimated to have a log Pow value of greater than 10. For the purposes of the CSA, a LogKow value of 8 will be used, as this is the maximum value that is in the domain of the EUSES model.
For the purposes of the CSA, a LogKow of 8 will be used, as this is the maximum value that is in the domain of the EUSES model.
For the purposes of the CSA, a LogKow of 8 will be used, as this is the maximum value that is in the domain of the EUSES model.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 8
Additional information
The partition coefficient of EC 903-162-9 was estimated in a study conducted according to OECD Test Guideline 107 (i.e. estimation from its individual solubility's in n-octanol and water). Due to the fact, that the individual solubility's could not be quantified in definite values (water solubility < 0.5 mg/L, octanol solubility > 1000 mg/L), the test material was estimated to have a log Pow value > 6.3.
Considering the difficult structure of the substance and the surface active properties the estimation method is the most appropriate method for testing the octanol / water partition coefficient. Due to the nature of the substance - organic and inorganic parts in the molecules - the analytics is very complex. Therefore QSAR calculations were performed to support the experimental results. For these calculations the smallest organic constituents were modelled in non-ionic form using the lower limit of their molecular weight ranges. Even then the calculated log Pow was >10. Therefore the log Pow for the complete UVCB substance was concluded to be > 10. For the purposes of the CSA, a LogKow of 8 will be used, as this is the maximum value that is in the domain of the EUSES model.
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