Registration Dossier
Registration Dossier
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EC number: 205-238-0 | CAS number: 136-30-1
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Remarks on result:
- not determinable
- Remarks:
- No definite melting temperature could be determined. The endothermic effect beginning at -21°C indicates a change of modification. This effect cannot be interpreted as melting point. The sample remains a solid.
- Conclusions:
- No definite melting temperature could be established as the sample remains a solid.
- Executive summary:
The study was performed to determine the melting temperature of the test substance according to EU Method A.1 and in compliance with GLP. Using the differential scanning calorimetry method no definite melting temperature could be established. The endothermic effect beginning at -21°C indicates a change of modification, however this effect cannot be interpreted as melting point. The sample remains a solid.
Reference
Description of key information
The differential scanning calorimetry (DSC) was used on the solid sample. The endothermic effect beginning at -21°C indicates a change of modification. This effect cannot be interpreted as melting point. The sample remains solid.
Key value for chemical safety assessment
Additional information
Data from a GLP-compliant guideline study, adequate for assessment.
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