Registration Dossier
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EC number: 945-942-1 | CAS number: -
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:
- 05 October 2017 to 13 December 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2016
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- 1998
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- > 400 °C
- Decomposition:
- no
- Conclusions:
- Under the conditions of this study the melting point of the test material was not below 400 °C.
- Executive summary:
The melting point of the test material was investigated in accordance with the standardised guidelines OECD 102, EU Method A.1 and OPPTS 830.7200, under GLP conditions.
A preliminary test was performed using a thermogravimetric analyser (TGA) as a safety precaution for the DSC (differential scanning calorimeter) main test.
No effects were observed which were due to melting of the test material in the preliminary or main test. After the experiment, the sample appeared unchanged, i.e. no decomposition and/or evaporation were observed.
The melting temperature is defined as the temperature at which the phase transition from solid to liquid state takes place at normal atmospheric pressure. This temperature ideally corresponds to the solidification or freezing temperature.
Under the conditions of this study the melting point of the test material was not below 400 °C.
Reference
Preliminary Test
- No weight loss was observed during the experiment.
- After the experiment, the sample appeared to have been unchanged, i.e. no signs of decomposition and/or evaporation were observed.
Main Study
- No effects were observed which were due to melting and/or boiling of the test material.
- After the experiment, the sample appeared unchanged, i.e. no decomposition and/or evaporation were observed.
Conclusion
- Melting of the test material was not observed below 400 °C (> 673 K).
Description of key information
Under the conditions of this study the melting point of the test material was not below 400 °C.
Key value for chemical safety assessment
Additional information
The melting point of the test material was investigated in accordance with the standardised guidelines OECD 102, EU Method A.1 and OPPTS 830.7200, under GLP conditions.
A preliminary test was performed using a thermogravimetric analyser (TGA) as a safety precaution for the DSC (differential scanning calorimeter) main test. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).
No effects were observed which were due to melting of the test material in the preliminary or main test. After the experiment, the sample appeared unchanged, i.e. no decomposition and/or evaporation were observed.
The melting temperature is defined as the temperature at which the phase transition from solid to liquid state takes place at normal atmospheric pressure. This temperature ideally corresponds to the solidification or freezing temperature.
Under the conditions of this study the melting point of the test material was not below 400 °C.
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