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EC number: 204-640-3 | CAS number: 123-66-0
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:
- 2014-11-20 to 2014-11-21
- 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.:
- -68.3 °C
- Atm. press.:
- >= 1 007 - <= 1 014 hPa
- Decomposition:
- no
- Conclusions:
- The test item has a melting point of -68.3°C corected to normal atmospheric pressure (1013 hPa) as determined by differential scanning calorimetry.
- Executive summary:
The test item has a melting point of -68.3 °C corected to normal atmospheric pressure (1013 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.1. and OECD Test Guideline 102 (1995).
Reference
A distinct endothermic effect was observed in the temperature range of -75 to -50 °C, which can be associated with the melting of the test item. As the onset temperatures in both test do not deviate by more than 0.5 K from their mean value of 68.31 °C, this temperature can be used as melting point. The test item has a melting point of 68.3 °C
Measurement no. |
Onset of Effect / °C |
Range of Effect /°C |
Atmospheric pressure / hPA |
1 |
-68.40 – 167.49
|
-75 to -50 (endo)
|
1007.1 |
2 |
--68.21 – 166.95 |
-70 to -50 (endo)
|
1007.1 |
Description of key information
Melting point: -68.3°C at 1013 hPa
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -68.3 °C
Additional information
The test item has a melting point of -68.3 °C corrected to normal atmospheric pressure (1013 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.1. and OECD Test Guideline 102 (1995).
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