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Physical & Chemical properties

Melting point / freezing point

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Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
Jan 25, 2018
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Reference:
Composition 0
Principles of method if other than guideline:
Differential Scanning Calorimetry (DSC)
GLP compliance:
no
Type of method:
differential scanning calorimetry
Test material information:
Composition 1
Melting / freezing pt.:
133 °C
Atm. press.:
ca. 1 013 hPa
Decomposition:
yes
Decomp. temp.:
>= 188.8 °C

In the temperature range of 133 – 150 °C an endothermic effect (melting), was observed. Between approx. 189 – 280 °C a exothermic effect (decomposition) could be detected. During the heating phase an endothermic effect was observed in the temperature range of 133 – 150 °C, which can be assigned to the melting of the test item. The onset temperatures is 133.0 °C, the test item has a melting point of 133.0 °C.

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Feb 26, 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Reference:
Composition 0
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Qualifier:
equivalent or similar to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
GLP compliance:
no
Type of method:
capillary method
Test material information:
Composition 1
Melting / freezing pt.:
133.5 °C
Atm. press.:
ca. 1 013 hPa

Description of key information

133.5 °C at ca. 1013 hPa (capillary method). DSC method result (133 °C at ca. 1013 hPa) confirmed the value.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
133 °C

Additional information