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EC number: 600-337-9 | CAS number: 102691-36-1
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:
- 2017-09-26 to 2018-04-17
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- ca. 12.7 °C
- Atm. press.:
- ca. 1 013.3 hPa
- Conclusions:
- The test item had a mean melting point of 12.7 °C under atmospheric conditions.
- Executive summary:
The melting point of the test item was determined by DSC measurement according to OECD 102. The test item had a mean melting point of 12.7 °C under atmospheric conditions.
Reference
In both measurements the test item was cooled down to -50 °C with a cooling rate of 1 K/min, -50 °C were kept for 300 min and afterwards the test item was heated up to 50 °C with a heating rate of 10 K/min. During heating up the measurements showed an endothermal effect in the temperature range of 5 to 25 °C. In both measurements a small mass loss of approx. 4% was observed (the mass loss had no influence on the final results).
The results of the DSC measurements are summarized in Table 1 below:
Table 1: Melting point (DSC measurements)
DSC run |
Test item / mg |
Starting temperature / °C |
Final test temperature / °C |
Temperature range (endothermal) / °C |
Onset / °C |
Crucible |
Observations after the measurement |
1 |
12.85 |
-50 |
50 |
5 - 25 |
12.68 |
Aluminium with hole |
Test item was unchanged |
2 |
10.01 |
-50 |
50 |
5 - 25 |
12.66 |
Aluminium with hole |
Test item was unchanged |
Description of key information
The melting point of the test item was determined by DSC measurement according to OECD 102. The test item had a mean melting point of 12.7 °C under atmospheric conditions.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 12.7 °C
Additional information
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