Registration Dossier
Registration Dossier
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EC number: 263-179-6 | CAS number: 61791-46-6
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:
- from 2018-03-07 to 2018-06-06
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 27 July 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 31 May 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- March 1998
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- > 98 - < 124 °C
- Atm. press.:
- 1 013.25 hPa
- Decomposition:
- yes
- Decomp. temp.:
- > 156 - < 355 °C
- Sublimation:
- no
- Conclusions:
- The melting range of the test item was determined to be 98 - 124 °C at 1013.25 hPa. Between the temperature of 156 to 355 °C the substance undergoes decomposition.
- Executive summary:
The melting point was determined according to OECD guideline 102, EU Method A.1 and OPPTS 830.7200 using differental scanning calorimetry DSC. At the start of the experiment, the substance appeared as a yellowish gel; at the end of the experiment the substance appeared as dark brown liquid. Initial weight of the test item found to be 1.9 mg and after analysis residue found to be 0.0 mg. During the DSC heating up phase, an endothermic reaction was recorded between 98 to 124 °C, which can be reasonably attributed to the melting point. Around the temperature of 163 °C the substance undergoes decomposition, through a series of successive exo-endo-thermic reactions.
Reference
Description of key information
The melting range of the test item was determined to be 98 - 124 °C at 1013.25 hPa. Between the temperature of 156 to 355 °C the substance undergoes decomposition.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 98 °C
Additional information
The melting point was determined according to OECD guideline 102, EU Method A.1 and OPPTS 830.7200 using differential scanning calorimetry DSC. At the start of the experiment, the substance appeared as a yellowish gel; at the end of the experiment the substance appeared as dark brown liquid. Initial weight of the test item was found to be 1.9 mg and after analysis, residue was found to be 0.0 mg. During the DSC heating up phase, an endothermic reaction was recorded between 98 to 124 °C, which can be reasonably attributed to the melting point. Around the temperature of 163 °C the substance undergoes decomposition, through a series of successive exo-endothermic reactions.
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