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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
Study period:
2015
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study with acceptable restrictions
Reference:
Composition 0
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
not applicable
GLP compliance:
no
Type of method:
thermal analysis
Remarks:
Differential Thermal Analysis (DTA) / Differential Scanning Calorimetry (DSC)
Test material information:
Composition 1
Melting / freezing pt.:
206 °C
Decomposition:
yes
Decomp. temp.:
240 - 380 °C
Remarks on result:
other: No pressure reported

RESULT:

- A melting point between 204 and 207 °C could be observed due to the detected endothermal effect

- After the melting of the test item an exothermal phase could be observed between around 240 and 380 °C

- Up to the decomposition of the test item no definite boiling point was observed

Conclusions:
The melting temperature of the substance is in the range of 204 and 207 °C and no pressure was reported.
Executive summary:

A differential thermoanalysis method (DTA) was used to determine the melting point which conforms with the procedure Test method A.1, "Determination of the melting point", described in the EC-Guideline. A melting range of the substance between approx. 204 to 207 °C could be observed. After the melting of the test item an exothermal phase could be observed between around 240 and 380 °C.

Description of key information

The melting temperature of the substance is in the range of 204 and 207 °C and no pressure was reported. In another study the DSC traces exhibit only the melting endotherm with an onset temperature between 207.4 °C and 207.9 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
206 °C

Additional information