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EC number: 947-851-2 | 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
- Study period:
- 02 March 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- 37.3 °C
- Atm. press.:
- 985 hPa
- Conclusions:
- The melting point was determined to be 37.3°C by Differential Scanning Calorimetry (DSC).
- Executive summary:
The melting point study was conducted in accordance with OECD Guideline 102 and EU method A1 and is considered reliable without restrictions. (Klimisch 1). The melting point of the test item was determined by Differential Scanning Calorimetry (DSC). The melting point was determined to be 37.3⁰C at 985.0 hPa.
Reference
Table 1: Results of the DSC-measurements for melting point endpoint
Number |
Sample weight (mg) |
Onset of effect (⁰C) |
Range of effect (⁰C) |
Weight loss (mg) |
Atmospheric pressure / hPa |
|
1 |
7.68 |
|
30 – 50 (endo) |
7.68
|
1002.0
|
|
2 |
5.13 |
|
30 – 50 (endo) |
4.83 |
1002.0
|
During the heating phase an endothermic effect was observed in the temperature range of 30 – 50 °C, which can be assigned to the melting of the test item. As the onset temperatures in both tests deviate by less than 0.5 K from their mean value of 37.34 °C, the test item has a melting point of 37.3 °C.
Description of key information
The melting point was determined to be 37.3°C by Differential Scanning Calorimetry (DSC).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 37.3 °C
Additional information
The melting point study was conducted in accordance with OECD Guideline 102 and EU method A1 and is considered reliable without restrictions. (Klimisch 1). The melting point of the test item was determined by Differential Scanning Calorimetry (DSC). The melting point was determined to be 37.3°C at 985.0 hPa.
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