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EC number: 220-076-0 | CAS number: 2623-23-6
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:
- 05 Mar 2015 to 12 Mar 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 123 (Partition Coefficient (1-Octanol / Water), Slow-Stirring Method)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Staatliches Gewerbeaufsichtsamt Hildeshelm
- Type of method:
- other: Slow-Stirring
- Partition coefficient type:
- octanol-water
- Key result
- Type:
- log Pow
- Partition coefficient:
- 4.39
- Temp.:
- 25 °C
- pH:
- 5.76
- Conclusions:
- A log Pow of 4.39 (at 25°C, pH 5.76) was determined for the test substance according to OECD 123.
Reference
Results
Table of results
Replicate number |
Test duration (h) |
Measured concentration |
POW |
Log POW |
||||
in n-octanol (mg/L) |
in Aq. phase (mg/L) |
Single |
Mean |
SD +/- |
CV |
|||
1 |
66.00 |
21054 |
0.796 |
26439 |
4.42 |
4.40 |
0.03 |
0.60 |
71.00 |
21044 |
0.852 |
24694 |
4.39 |
||||
90.25 |
19769 |
0.861 |
22962 |
4.36 |
||||
95.25 |
21220 |
0.830 |
25570 |
4.41 |
||||
2 |
66.00 |
21276 |
0.725 |
29329 |
4.47 |
4.40 |
0.04 |
0.95 |
71.00 |
21431 |
0.889 |
24113 |
4.38 |
||||
90.25 |
19810 |
0.826 |
23993 |
4.38 |
||||
95.25 |
20216 |
0.824 |
24545 |
4.39 |
||||
3 |
66.00 |
20232 |
0.859 |
23561 |
4.37 |
4.38 |
0.03 |
0.75 |
71.00 |
19721 |
0.885 |
22284 |
4.35 |
||||
90.25 |
20148 |
0.756 |
26668 |
4.43 |
||||
95.25 |
19629 |
0.835 |
23517 |
4.37 |
||||
Log POW, Av = 4.393
σ Log POW, Av = 0.004
aq. phase = Aqueous phase
POW = Partition coefficient (n-octanol / water)
Log POW = Decadic logarithm of the partition coefficient (n-octanol / water)
SD = Standard Deviation
CV = Coefficient of variation (%)
Log POW, Av = Weighted average value of log POW
σ Log POW, Av = Weighted standard deviation
Conclusions
The partition coefficient (n-octanol/water) (log POW) of the test substance was determined at a test temperature of 25 ± 1 °C and at a pH value of 5.758 from three independent replicates (test vessels) with four sub-replicates (samples) to be 4.393 ± 0.004.
Description of key information
Log Pow: 4.39 at 25 °C, pH 5.76 (OECD 123, slow stirring method)
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 4.39
- at the temperature of:
- 25 °C
Additional information
A log Pow of 4.39 (at 25°C, pH 5.76) was determined for the test substance according to OECD 123.
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