Registration Dossier
Registration Dossier
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EC number: 830-217-3 | CAS number: 1393932-71-2
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:
- 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- ca. -56 °C
- Remarks on result:
- other: Upon heating, the test substance exhibited glass transition, therefore melting was not observed.
- Remarks:
- The glass transition region was observed at -56°C and the onset of exotherm was observed at 142°C
- Conclusions:
- Under the test conditions, di-TMPTTA exhibited glass transition, therefore melting was not observed. The glass transition temperature was evaluated as -56°C. Further, the onset of exotherm was observed at the temperature of 142°C.
- Executive summary:
A study was conducted to evaluate the melting point of di-TMPTTA using differential scanning calorimeter (DSC). The study was equivalent or similar to the OECD Guideline 102. Under the test conditions the test substance exhibited glass transition, therefore melting was not observed. The glass transition temperature was evaluated as -56°C. Further, the onset of exotherm was observed at the temperature of 142°C (Jeuniaux, 2012).
Reference
Results: DSC results (2 heating runs)
Sample # |
Tg (HR1)°C |
Tg (HR2)°C |
Onset of exotherm°C |
Ebecryl ®140 |
-56 |
-56 |
142 |
Description of key information
Melting point was determined using differential scanning calorimetry (Jeuniaux, 2012).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -56 °C
Additional information
Glass transition temperature: -56°C (onset of exotherm at 142°C)
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