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Physical & Chemical properties

Melting point / freezing point

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Reference
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:
OECD Guideline 102 (Melting point / Melting Range)
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
< -90 °C
Atm. press.:
1 021 hPa
Decomposition:
no
Sublimation:
no
Remarks on result:
other: No melting/freezing observed at -90 °C (183 K)

Freezing and or melting of the test substance was not observed at -90 °C (183K). Therefore, the melting temperature of the test substance lies beyond the scope of this test. The atmospheric pressure was 1021±1 hPa.

Conclusions:
The substance has a melting point of below -90 °C at 1021 hPa.
Executive summary:

The melting point of the substance was determined in a study in accordance with OECD TG 102 (differential scanning calorimetry (DSC)) and in compliance with GLP criteria. The test substance is evaluated from the DSC curve as the extrapolated onset temperature of the endothermic melting peak. Freezing and or melting of the test substance was not observed at -90 °C (183K). Therefore, the melting temperature of the test substance lies beyond the scope of this test. As a conclusion, the melting point is determined at <-90 °C at 1021 hPa.

Description of key information

The melting point is determined at <-90 °C at 1021 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-90 °C

Additional information

The melting point of the substance was determined in a study in accordance with OECD TG 102 (differential scanning calorimetry (DSC)) and in compliance with GLP criteria (NOTOX BV, 2010). The test substance is evaluated from the DSC curve as the extrapolated onset temperature of the endothermic melting peak. Freezing and or melting of the test substance was not observed at -90 °C (183K). Therefore, the melting temperature of the test substance lies beyond the scope of this test.