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EC number: 944-181-2 | 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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- 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.:
- -22.9 °C
- Atm. press.:
- ca. 101.3 kPa
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: result relates to glass transition temperature of the substance
- Conclusions:
- No endothermic peak corresponding to melting of the test substance was recorded in the tested temperature range from -50°C to 25°C. On both heating and cooling curves, a glass transition temperature of -22.9°C was determined.
Reference
In both experiment a glass transition was observed between -37 and -16°C on the heating curve. The extrapolated glass transition temperatures were -22.76 and -22.98°C in the initial and follow up experiments respectively. In both experiments, the sample had lost no mass and the consistency and colour of the sample had not changed.
Description of key information
No endothermic peak corresponding to melting of the test substance was recorded in the tested temperature range from -50°C to 25°C. On both heating and cooling curves, a glass transition temperature of -22.9°C was determined which is selected as the key value for chemical safety assessment.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -22.9 °C
Additional information
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