Registration Dossier
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EC number: 914-172-8 | 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:
- Testing was conducted between 01 June 2010 and 03 July 2010.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Melting / freezing pt.:
- > 723 K
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The test material was determined to have a melting temperature greater than 450°C (greater than 723 K). However, the test item did undergo numerous losses of volatiles in the range 150 to 430°C (423 to 703 K); these thermal events were not associated with any phase transition of the test item.
Reference
Thermographic data for Determinations 1 and 2 are shown in the following tables respectively:
Table 3 - Thermographic Data – Determination 1
Thermal Event |
Interpretation |
Temperature |
|
ºC |
K |
||
Endotherms |
Loss of volatiles |
150 to 380 |
423 to 653 |
Table 4 - Thermographic Data – Determination 2
Thermal Event |
Interpretation |
Temperature |
|
ºC |
K |
||
Endotherms |
Loss of volatiles |
150 to 430 |
423 to 703 |
The thermographic data is shown in attachment - Thermograms
Description of key information
The test material was determined to have a melting temperature greater than 450°C (greater than 723 K).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 450 °C
Additional information
The test item did undergo numerous losses of volatiles in the range 150 to 430°C (423 to 703 K); these thermal events were not associated with any phase transition of the test item.
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