Registration Dossier
Registration Dossier
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EC number: 931-206-7 | CAS number: -
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Study period:
- 2010-04-15
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
- Principles of method if other than guideline:
- The Log P is not suggested for the determintaion of the lipophilicity for ionisable substances, because it is based only on neutral species and does
not include the ionised fraction which is pH dependent. For these substances the most suited parameter is represented by the Log D (annexA ) that takes into account of the equilibrium between associate and dissociated species and so, it could better express the repartition between
1-octanol and water at the recommended environmental pH of 7 - GLP compliance:
- no
- Partition coefficient type:
- other: Log D
Test material
- Reference substance name:
- Benzene, mono C10-13-alkyl derivs, distn residues, sulfonated
- IUPAC Name:
- Benzene, mono C10-13-alkyl derivs, distn residues, sulfonated
Constituent 1
Results and discussion
Partition coefficient
- Partition coefficient:
- ca. 4.9
- Temp.:
- 25 °C
- pH:
- 7
- Remarks on result:
- other: log D
Any other information on results incl. tables
| pH | Species | |
| 0,5 | 10,67 | |
| 1 | 10,51 | |
| 1,5 | 10,21 | |
| 2 | 9,79 | |
| 2,5 | 9,33 | |
| 3 | 8,84 | |
| 3,5 | 8,34 | |
| 4 | 7,84 | |
| 4,5 | 7,34 | |
| 5 | 6,84 | |
| 5,5 | 6,34 | |
| 6 | 5,85 | |
| 6,5 | 5,36 | |
| 7 | 4,90 | |
| 7,5 | 4,52 | |
| 8 | 4,25 | |
| 8,5 | 4,11 | |
| 9 | 4,06 | |
| 9,5 | 4,04 | |
| 10 | 4,04 | |
| 10,5 - 14 | 4,03 | |
Applicant's summary and conclusion
- Executive summary:
the calculated log D is 4.90 at pH 7
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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