Registration Dossier
Registration Dossier
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EC number: 214-333-6 | CAS number: 1121-60-4
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:
- 2018-05-03 to 2018-05-09
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- 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
- Key result
- Remarks on result:
- other: The test item had a melting range of (-24) – (-26) °C.
- Conclusions:
- The test item had a melting range of (-24) – (-26) °C.
- Executive summary:
The test item has a melting range of (-24) – (-26) °C as determined by differential scanning calorimetry according to Directive EC 440/2008 Method A.1., OECD Test Guideline 102 (1995).
Reference
Two DSC measurements in closed aluminium crucibles were performed. The test item was cooled down with a cooling rate of 1 K/min (-100 °C), the minimum temperature was kept for 300 min and afterwards the test item was heated up with a heating rate of 10 K/min (maximum temperature 25 °C). The measurementsshowed an endothermal effect (melting) in the temperature range of (-35) – (-5) °C.
Table1: Melting point (DSC measurements)
Ident No. |
Test item / mg |
Starting temperature / °C |
Final test temperature / °C |
Temperature range (endo-thermal) / °C |
Onset (melting) / °C |
Crucible |
Observations after the measurement |
36994 |
11.68 |
See above |
See above |
(-35) – (-5) |
-24.11 |
Aluminium |
--- |
36995 |
11.50 |
See above |
See above |
(-35) – (-5) |
-25.52 |
Aluminium |
--- |
The onset temperature (see Table1) was derived from the intersection of the tangent line with the highest slope of the endothermal peak with the baseline.
Description of key information
The test item has a melting range of -24 to -26 °C as determined by differential scanning calorimetry. It was determined in a reliable study conducted according to an appropriate standard tes method (OECD 102).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -24 °C
Additional information
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