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EC number: 807-040-5 | CAS number: 4538-42-5
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:
- other: GLP 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)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- thermal analysis
- Remarks:
- Differential Thermal Analysis (DTA) / Differential Scanning Calorimetry (DSC)
- Decomp. temp.:
- > 140 - < 450 °C
- Conclusions:
- From -100 °C up to 450 °C no melting point could be observed.
- Executive summary:
According to EU Method A. 1 no melting point was observed from -100 °C up to 450 °C. Between approx. 140 °C and approx. 215 °C an exothermic reaction could be observed which could indicate decomposition of the test item. Between approx. 220 and approx. 290 °C additional endothermic effects were detected. From approx. 330 °C up to approx. 450 °C a further exothermic effect is visible. After the heating process a brownish residue remains in the crucible which indicates decomposition of the test item.
Reference
From -100 °C up to 450 °C no melting point could be observed. Between approx. 140 °C and approx. 215 °C an exothermic reaction could be observed which could indicate decomposition of the test item. Between approx. 220 and approx. 290 °C additional endothermic effects were detected. From approx. 330 °C up to approx. 450 °C a further exothermic effect is visible. After the heating process a brownish residue remains in the crucible which indicates decomposition of the test item.
Description of key information
From -100 °C up to 450 °C no melting point could be observed.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -100 °C
Additional information
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