Registration Dossier
Registration Dossier
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EC number: 695-938-6 | CAS number: 678966-16-0
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:
- From 2009-04-30 to 2009-06-15
- 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:
- not specified
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- capillary method
- Specific details on test material used for the study:
- Batch No.: 08111121
Purity: 98% - Key result
- Decomposition:
- yes
- Decomp. temp.:
- > 130 °C
- Remarks on result:
- not determinable
- Remarks:
- decompose at temperatures above approximately 130°C without melting.
- Conclusions:
- The test substance was found decompose at temperatures above approximately 130°C without melting.
- Executive summary:
The melting temperature was examined using the metal block method according to OECD Method 102.
The test substance was found decompose at temperatures above approximately 130°C without melting.
Reference
During the preliminary test, the test substance was observed to darken from approximately 137ºC, without melting, indicating decomposition.
Differential scanning calorimetry (DSC) was employed to further examine this apparent decomposition. A Mettler Toledo FP900 Thermosystem with FP85 DTA/DSC measuring cell was used. The results shows an example DSC trace, obtained in an air atmosphere at a heating rate of 1°C/minute. A series of exotherms were evident from approximately 130°C, consistent with the onset of decomposition seen in the metal block test.
Description of key information
The test substance was found decompose at temperatures above approximately 130 °C without melting.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 130 °C
Additional information
The melting temperature was examined using the metal block method according to OECD Method 102.
The test substance was found decompose at temperatures above approximately 130 °C without melting.
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