Registration Dossier
Registration Dossier
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EC number: 203-120-3 | CAS number: 103-53-7
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same 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.:
- 56.5 °C
- Atm. press.:
- 1 005 hPa
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: Mean value of 2 replicate measurements
- Conclusions:
- The test item has a melting point of 56.5 °C at atmospheric pressure (1005hPa).
- Executive summary:
The melting point of the test item was assessed according to OECD 102, differential scanning calorimetry. The measurement was performed in duplicate. An endothermic effect was observed in the range of 50 to 70°C. The mean melting point temperature was derived to be 56.5°C at atmospheric pressure (1005 hPa).
Reference
During the heating phase, an endothermal effect was observed in the temperature range of 50 to 70 °C, which can be assigned to the melting of the test item.
The results of the 2 replicate measurements are:
Replicate |
sample weight (mg) |
Onset of effect (°C) |
Range of effect (°C) |
Atmospheric pressure (hPa) |
1 |
8.99 |
56.48 |
50 to 70 (endo) |
1005.2 |
2 |
10.87 |
56.59 |
50 to 70 (endo) |
1005.2 |
As the onset temperatures in both tests deviate less than 0.5 K from their mean value of 56.54 °C, the mean value is used as melting point.
Description of key information
The test item has a melting point of 56.5 °C at atmospheric pressure, as determined according to OECD 102, differential scanning calorimetry.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 56.5 °C
Additional information
In a recent study the melting temperature of the test item was determined according to the OECD 102 by differential scanning calorimetry. A thermogram is obtained in which the transition heat flow is exhibited as function of the temperature. In this diagram, the onset of the process as well as the heat flow of the process are shown.
The test item has a melting point of 56.5 °C at atmospheric pressure.
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.
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