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EC number: 241-442-6 | CAS number: 17418-58-5
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:
- April 10th, 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to other study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- GLP compliance:
- no
- Type of method:
- shake-flask method to: flask method
- Partition coefficient type:
- octanol-water
- Analytical method:
- photometric method
- Type:
- Pow
- Partition coefficient:
- ca. 58.615
- Temp.:
- 20 °C
- Remarks on result:
- other: pH n.a.
- Type:
- log Pow
- Partition coefficient:
- ca. 1.766
- Temp.:
- 20 °C
- Remarks on result:
- other: pH n.a.
- Conclusions:
- The partition coefficient, log Pow, of the test substance is 1.7660, at 20 °C.
- Executive summary:
The partition coefficient of the substance was tested according to the OECD guideline 107 (Partition coefficient (n-octanol/water): Shake Flask Method).
The partition coefficient, log Pow, of the test substance is 1.7660 at 20 °C.
Reference
At 96 hours, values reached equilibrium, and so this value was considered for final calculations making duplicate determinations of every o/w ratio.
Concentration of mother solution: W1= 0.0413 g/100 ml = 0.4130 g/l.Ratio o/w |
Water phase c (g/l) |
n-octanol phase c (g/l) |
Pow |
log Pow |
Average log Pow |
70/30 |
0.0062 |
0.3986 |
64.3611 |
1.808624 |
1.7578 |
0.0078 |
0.3986 |
50.9231 |
1.706915 |
||
50/50 |
0.0078 |
0.4052 |
51.7692 |
1.714072 |
1.7510 |
0.0066 |
0.4064 |
61.3636 |
1.787311 |
||
30/70 |
0.0063 |
0.4103 |
64.9048 |
1.812277 |
1.7892 |
0.0070 |
0.4100 |
58.3714 |
1.766200 |
||
pH of the test solution: |
n.a. |
||||
Average Pow |
58.6155 |
Average log Pow |
1.7660 |
||
Std. dev. Pow |
2.6723 |
Std. dev. log Pow |
0.020 |
||
Description of key information
1.7660
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 1.766
- at the temperature of:
- 20 °C
Additional information
The partition coefficient (log Pow) of the test substance is 1.7660 at 20 °C as determined according to OECD guideline 107: Shake flask method.
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