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Physical & Chemical properties

Partition coefficient

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Reference
Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
Type of method:
flask method
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch number of test material: CNT20192013-20190709

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Ambient temperature (10-30°C), ventilation, avoid direct sunlight.
Analytical method:
high-performance liquid chromatography
Key result
Type:
Pow
Partition coefficient:
52 600
Temp.:
22.5 °C
pH:
7
Key result
Type:
log Pow
Partition coefficient:
> 4.72
Temp.:
22.5 °C
pH:
7
Details on results:
Sample analysis results: pH of test water was 7;
The concentrations of test item in water phase were all less than the limit of detection.so the results were calculated as LOD.
With a volume ratio (5:50) of n-octanol to water, Pow values were >5.18E+04 and >5.38E+04, lgPow values were >4.71 and >4.73.
With a volume ratio (10:50) of n-octanol to water, Pow values were >5.18E+04 and >5.38E+04, IgPow values were >4.71 and >4.72.
With a volume ratio (20:50) of n-octanol to water, Pow values were >5.18E+04 and >5.38E+04, lgPow values were >4.72 and >4.73.
The mean of Pow value was >5.26E+04, the mean of lgPow value is >4.72. the deviation of the six IgPow values was 0.02 which was within the range of ± 0.3 lgPow.
Conclusions:
According to the OECD Guideline for the Testing of Chemicals, 107 Partition Coefficient (n-octanol/water): Shake Flask Method, the partition coefficient (Pow) of test item was >52600 and the lgPow was >4.72 at 22.5 ℃.

Description of key information

According to the OECD Guideline for the Testing of Chemicals, 107 Partition Coefficient (n-octanol/water): Shake Flask Method, the partition coefficient (Pow) of test item was >52600 and the lgPow was >4.72 at 22.5 ℃.

Key value for chemical safety assessment

Log Kow (Log Pow):
4.72
at the temperature of:
22.5 °C

Additional information