Registration Dossier
Registration Dossier
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EC number: 217-588-1 | CAS number: 1897-45-6
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:
- 23 May 1994
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: 40 CFR 158.190 Pesticide Assessment Guidelines Subdivision D: Product Chemistry Guideline 63 - 11
- GLP compliance:
- yes
- Type of method:
- flask method
- Partition coefficient type:
- octanol-water
- Analytical method:
- gas chromatography
- Key result
- Type:
- log Pow
- Partition coefficient:
- 2.94
- Temp.:
- 25 °C
- Remarks on result:
- other: no pH has been reported
- Type:
- Pow
- Partition coefficient:
- 861.5
- Temp.:
- 25 °C
- Remarks on result:
- other: no pH has been reported
- Conclusions:
- The mean octanol/water partition coefficient of the test substamce was determined to be 861.5 at 25 °C. The mean log Pow was determined to be 2.94.
- Executive summary:
The 1-octanol / water partition coefficient (Pow) of the test substance has been determined in accordance with the 40 CFR 158.190 method using the shake-flask method, and in compliance with GLP. The mean octanol/water partition coefficient was determined to be 861.5 at 25 °C. The mean log Pow was 2.94.
Reference
Table 1: Octanol/Water Partition Coefficient
Octanol |
Water P |
Pow |
log Pow |
1.433E-3 |
1.402E-6 |
1022 |
3.01 |
1.438E-3 |
1.685E-6 |
853.4 |
2.93 |
1.439E-3 |
1.694E-6 |
849.5 |
2.93 |
|
Mean |
908.3 |
23.98 |
|
Std Dev * |
98.5 |
|
|
RSD |
10.8% |
|
|
|
|
|
1.397E-3 |
1.743E-6 |
801.5 |
2.9 |
1.381E-3 |
1.680E-6 |
822 |
2.91 |
1.390E-3 |
1.796E-6 |
773.9 |
2.89 |
|
Mean |
799.1 |
2.90 |
|
Std Dev * |
24.14 |
|
|
RSD |
3.02% |
|
|
|
|
|
1.418E-3 |
1.697E-7 |
835.6 |
2.92 |
1.358E-3 |
1.525E-7 |
890.5 |
2.95 |
1.444E-3 |
1.596E-7 |
904.8 |
2.96 |
|
Mean |
877 |
2.94 |
|
Std Dev * |
36.53 |
|
|
RSD |
4.17 % |
|
|
|
|
|
|
Overall Mean |
861.5 |
2.94 |
|
|
RSD |
8.43% |
|
|
|
|
Description of key information
Log Kow = 2.94 at 25 °C, 40 CFR 158.190 method, flask method, Lorence 1995.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 2.94
- at the temperature of:
- 25 °C
Additional information
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