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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
Study period:
Testing was conducted between 26 January 2017 and 13 July 2017.
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
Version / remarks:
Flask-test (in house based on OECD Test nr:107)
Deviations:
no
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
flask method
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
Sponsor´s identification: Tar, pinus sylvestris.
Description: Black, slightly thick but flowing solution, homogenous, typical wood tar odor.
Storage conditions: Room temperature
Analytical method:
high-performance liquid chromatography
Key result
Type:
log Pow
Partition coefficient:
ca. 1.46
Remarks on result:
other: pH and temperature not reported
Details on results:
Flask-test (in-house based on OECD Test nr: 107).
Conclusions:
The partition coefficient was found to be 1.46 Log Pow at the temperature of 25°C.
Executive summary:

Octanol water partition coefficient was measured by flask-test (in-house based on OECD Test nr: 107).The partition coefficient is defined as the ratio of the equilibrium concentrations of a dissolved substance in a two-phase system consisting of two largely immiscible solvents. The partition coefficient was found to be 1.46 Log Pow at the temperature of 25°C.

Description of key information

Octanol Water partition coefficient was measured by flask-test (in-house based on OECD Test nr: 107). The partition coefficient is defined as the ratio of the equilibrium concentrations of a dissolved substance in a two-phase system consisting of two largely immiscible solvents. The partition coefficient was found to be 1.46 Log Pow at the temperature of 25 °C.

Key value for chemical safety assessment

Log Kow (Log Pow):
1.46
at the temperature of:
25 °C

Additional information