Registration Dossier
Registration Dossier
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EC number: 947-942-7 | CAS number: -
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:
- other: OECD Guidelines for Testing of Chemicals, Section 1 "Physical-Chemical Properties No: 113" Screening Test for Thermal Stability and Stability in Air
- Deviations:
- no
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- not applicable
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- not applicable
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- thermal analysis
- Remarks:
- Differential Thermal Analysis (DTA)/Differential Scanning Calorimetry (DSC)
- Remarks on result:
- other: No melting point could be determined
- Conclusions:
- From -100 up to 450 °C no definitive melting point could be determined but a glass transition temperature at -96 °C. No pressure was reported.
- Executive summary:
A differential thermoanalysis method (DTA/DSC) was used to determine the melting point which conforms to the procedure Test method A.1, "Determination of the melting point", described in the EC-Guideline. From -100 up to 450 °C no definitive melting point could be determined but a glass transition temperature at -96 °C. After the heating process a decomposition of the substance seems to take place. This is supported by the solid, silvery residue. A slight exothermic effect between approx. 170 °C and approx. 260 °C was observed. Between approx. 300 °C and 360 °C a significant endothermic effect was observed.
Reference
From -100 °C up to 450 °C the substance showed no melting point but a glass transition temperature at -96 °C. A slight exothermic effect between approx. 170 °C and approx. 260 °C was observed. Between approx. 300 °C and 360 °C a significant endothermic effect was observed. A definite decomposition point could not be obtained. After the heating process a solid, silvery residue remains in the crucible which indicates decomposition of the substance.
Description of key information
From -100 up to 450 °C no definitive melting point could be determined but a glass transition temperature at -96 °C. No pressure was reported.
Key value for chemical safety assessment
Additional information
A definite decomposition point could not be obtained. After the heating process a solid, silvery residue remained in the crucible which indicates decomposition of the substance.
Reference:
Neuland, 2015
Guideline:
OECD 102
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