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EC number: 249-276-6 | CAS number: 28872-01-7
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2010-05-07
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Determination has been run according to standardized method but without GLP compliance.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 123 (Partition Coefficient (1-Octanol / Water), Slow-Stirring Method)
- Deviations:
- yes
- Remarks:
- Some adjustments have been done. The concentration of the surfactant are below the CMC value, pH has been adjusted to pH 6
- GLP compliance:
- no
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- slow-stirring method
- Partition coefficient type:
- octanol-water
- Key result
- Partition coefficient:
- -0.3
- Temp.:
- 25.6 °C
- pH:
- 6
- Remarks on result:
- other: The temperature during sampling was between 25.3 and 26.5 °C. The average temperature during sampling was 25.6 °C.
- Conclusions:
- The partition coefficient of the test substance is -0.3 at 25.6 °C at pH 6.
Reference
The measurements were made at pH=6 and at an initial concentration of 6.7 mg/L in the water phase (ca 10% of the critical micelle concentration (CMC). The partition coefficient value was determined from the weighed average of the concentrations of the main components in the product listed in the table below.
| Substance | Log Pow |
| Oleyl tripropylenetetramine | -0.3 |
| with the following results of its components: | |
| Octadecylene propylene diamine | 1.5 |
| Hexadecyl dipropylene triamine | -1.7 |
| Octadecylene dipropylene triamine | -0.3 |
| Octadecyldiene dipropylene triamine | -1.0 |
| Hexadecyl tripropylene tetramine | -1.9 |
| Octadecylene tripropylene tetramine | -1.2 |
| Octadecyldiene tripropylene tetramine | -1.8 |
Description of key information
The Log Pow of the test substance has been determined by the sum of the Log Pow contribution from its major components. The Log Pow has been determined to -0.3 at 25.6 °C at pH 6.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- -0.3
- at the temperature of:
- 25.6 °C
Additional information
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