Registration Dossier
Registration Dossier
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EC number: 240-464-3 | CAS number: 16415-12-6
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:
- 2003
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- yes
- Type of method:
- thermal analysis
- Remarks:
- Differential Scanning Calorimetry
- Melting / freezing pt.:
- 1.4 °C
- Atm. press.:
- 1 005 hPa
- Remarks on result:
- other: An exothermic cold crystallisation peak was recorded at -19°C
- Conclusions:
- A melting point value of 1.4°C at 1005 hPa was determined in a reliable study conducted according to an appropriate test protocol, and in compliance with GLP.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- 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:
- thermal analysis
- Remarks:
- Differential scanning calorimetry
- Melting / freezing pt.:
- -1.1 °C
- Remarks on result:
- other: Melting temperature
- Melting / freezing pt.:
- 4.2 °C
- Remarks on result:
- other: Freezing temperature
- Conclusions:
- A melting temperature of -1.1°C at 1013 hPa and a freezing temperature of 4.2°C at 1013 hPa was determined in a reliable study conducted according to an appropriate test protocol. It was not in compliance with GLP.
Referenceopen allclose all
Details
After the measurements there were no visible residues of the test item in the sample holders. The weight loss of the substance was 99.4%.
Interpretation of the differential scanning calorimeter curve
A melting point (endothermic peak) was detected at 1.4°C (extrapolated onset). An exothermic cold crystallisation was recorded at -19°C.
Description of key information
1.4 °C at 1005 hPa (OECD 102, differential scanning calorimetry)
Key value for chemical safety assessment
Additional information
The key study is supported by a measured melting temperature of -1.1°C (1013hPa) and a freezing temperature of 4.2°C (1013hPa) determined by Differential Scanning Calorimetry according to OECD Guideline 102.
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