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EC number: 935-976-5 | 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:
- 20.06.2019 - 07.09.2016
- 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
- Qualifier:
- according 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.:
- > 74 - < 75 °C
- Atm. press.:
- 1 013.3 hPa
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The melting point of the test substance was found to be between 74 and 75 °C.
- Executive summary:
A study was conducted according to OECD TG 102 and Regulation (EC) No 440/2008 method A.1 to determine the melting point of the test item using differential scanning calorimetry. The test item was weighed into an aluminium crucible under an inert atmosphere (nitrogen). Three measurements with about 12 - 14 mg of the test item were performed. The crucible was heated from room temperature (25 °C) to 500 °C with 10 K/min heating rate. The melting range of the test item was determined to be 74 - 75 °C at atmospheric pressure (1013 hPa).
Reference
Three DSC measurements with a heating rate of 10 K/min showed an endothermal effect (melting) in the temperature range of 65 - 90 °C.
Table 1: Melting point (DSC measurements)
Ident No. |
Test item mg |
Starting temperature °C |
Final test temperature °C |
Temperature range (melting) °C |
Onset °C |
Crucible |
Observations after the measurement |
35627 |
12.24 |
25 |
500 |
70 - 90 |
74.24 |
Aluminium |
Measurement was continued after melting |
35628 |
14.41 |
25 |
150 |
65 - 85 |
75.09 |
Aluminium |
Test item was a solidified melt |
35629 |
13.92 |
25 |
500 |
70 - 90 |
75.46 |
Aluminium |
Measurement was continued after melting |
The test item had a melting range of 74 - 75 °C.
Description of key information
The melting point of the test substance was found to be between 74 and 75 °C.
Key value for chemical safety assessment
Additional information
A study was conducted according to OECD TG 102 and Regulation (EC) No 440/2008 method A.1 to determine the melting point of the test item using differential scanning calorimetry. The test item was weighed into an aluminium crucible under an inert atmosphere (nitrogen). Three measurements with about 12 - 14 mg of the test item were performed. The crucible was heated from room temperature (25 °C) to 500 °C with 10 K/min heating rate. The melting range of the test item was determined to be 74 - 75 °C at atmospheric pressure (1013 hPa) (reference 4.2-1).
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