Tar, Pinus Sylvestris L. A complex combination distillate produced from trunks, stumps and roots of Pinus sylvestris L. by a traditional pine tar pit, kiln or retort process.

Partition coefficient

Link to relevant study record(s)

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

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