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EC number: 203-291-4 | CAS number: 105-37-3
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:
- 2014-10-07 to 2014-10-08
- 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)
- 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.:
- -73.7 °C
- Atm. press.:
- >= 994 - <= 996 hPa
- Decomposition:
- no
- Conclusions:
- The test item has a melting point of -73.7 °C at atmospheric pressure (994 – 996 hPa) as determined by differential scanning calorimetry.
- Executive summary:
The test item has a melting point of -73.7 °C at atmospheric pressure (994 – 996 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.1., OECD Test Guideline 102 (1995).
Reference
An endothermic effect can be observed in a temperature range of -80 °C – -60 °C, which can be associated with the melting of the test item. As the onset temperatures in both tests do not deviate by more than 0.5 K from their mean value of -73.65°C, this temperature can be used as melting point. The test item has a melting point of -73.7°C.
Measurement No. |
Onset of effect /°C |
Range of effect /°C |
Atmospheric pressure / hPa |
1 |
-73.72 98.71 |
-80 - -60 (endo) |
993.6 |
2 |
-73.58 98.60 |
-80 - -60 (endo) |
995.6 |
Description of key information
Melting point:-73.7°C at 994 -996 hPa
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -73.7 °C
Additional information
The test item has no melting point down to a temperature of - 73.7°C at atmospheric pressure (994 – 996 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.1., OECD Test Guideline 102 (1995).
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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