Registration Dossier
Registration Dossier
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EC number: - | 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:
- From April 4 to 6 2022
- 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:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- >= -21.22 - <= -20.04 °C
- Remarks on result:
- other: Freezing point
- Key result
- Melting / freezing pt.:
- -2.17
- Remarks on result:
- other: Melting point
- Conclusions:
- In all three DSC measurements an exothermic event during the cooling down phase was
detected. The exothermic event can be identified as freezing point (evaluated with the onset function). In the heating phase an endothermic event was detected. The endothermic event can be identified as melting point (evaluated with the onset function).
Therefore, the freezing point is given in a range from -20.04 °C to -21.22 °C (253.11 K to 251.93 K) which represent from three independent determinations.
The melting point was determined with: -2.17 ± 0.19 °C (270.98 ± 0.19 K) which represents the mean of three independent determinations.
No observations were made which might cause doubts on the validity of the study out-
come. Therefore, the result of the study is considered valid.
Reference
| Freezing point | in °C (onset) | in K |
| 1 Determination | -20.04 | 253.11 |
| 2 Determination | -21.22 | 251.93 |
| 3 Determination | -20.68 | 252.47 |
| Min | -21.22 | 251.93 |
| Max | -20.04 | 253.11 |
| Melting point | in °C (onset) | in K |
| 1 Determination | -2.14 | 271.01 |
| 2 Determination | -2.37 | 270.78 |
| 3 Determination | -2.00 | 271.15 |
| Mean | -2.17 | 270.98 |
| SD | 0.19 | 0.19 |
Description of key information
- The melting point was determined with: -2.17 ± 0.19 °C (270.98 ± 0.19 K) (OECD 102, EU A.1)
- The freezing point is given in a range from -20.04 °C to -21.22 °C (OECD 102, EU A.1)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -2.17 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
