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.

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

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:

other: ASTM D3418

Version / remarks:

Equipment: PerkinElmer Pyris 1, Closed-cup

Deviations:

no

GLP compliance:

no

Other quality assurance:

ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Type of method:

other: Method ASTM D3418

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

Key result

Melting / freezing pt.:

ca. -20 °C

Remarks on result:

not determinable

Conclusions:

Melting point was < -20 ˚C.

Executive summary:

The test method consists of heating or cooling the test material at a controlled rate in a specified purge gas (nitrogen) at a controlled flow rate and continuously monitoring with a thermometer the difference in temperature or the difference in heat input between a reference material and a test material due to energy changes in the material. Melting point was < -20 ˚C.

Description of key information

The study does not need to be conducted below a lower limit of - 20 °C. The melting point and crystallization temperature was carried out using ASTM D3418 method: Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by Differential Scanning Calorimetry. The results of the test material was found to be less than -20 Celsius degrees.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-20 °C