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EC number: 238-883-1 | CAS number: 14814-09-6
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2020-10-26 to 2020-11-03
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- The study was not conducted in accordance with a known quality system
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 27 July 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 30 May 2008
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Key result
- Atm. press.:
- 1 013 hPa
- Remarks on result:
- other: No melting point was found between -150 and +300°C under the conditions of the study. A glass transition was observed at -141°C.
- Conclusions:
- During the melting point study, no melting point was determined between -150 and +300°C under the conditions of the present study, but a glass transition was observed at -141°C. The result is considered to be reliable.
Reference
The heat flow curves show a small glass transition at -141°C, indicating that the test item had solidified amorphously.
The thermograms from the measurements are attached
Description of key information
Melting point: no melting point observed between -150 and +300°C under the conditions of the study but a glass transition was observed at -141°C (OECD 102).
Key value for chemical safety assessment
Additional information
Measurement of the melting point of the submission substance was attempted in a study conducted using a differential scanning calorimetry (DSC) in accordance with OECD Test Guideline 102. No melting point was observed between -150 and +300°C under the conditions of the study but a glass transition temperature was observed at -141°C. The result is considered to be reliable and is selected as key study.
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