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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:
December 16, 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
not specified
Principles of method if other than guideline:
Study conducted according to the internal method SOP-STR 028 DSC solid state
GLP compliance:
no
Type of method:
differential scanning calorimetry
Remarks:
Differential Scanning Calorimetry
Melting / freezing pt.:
> 206 - < 236 °C
Atm. press.:
ca. 1 atm
Decomposition:
yes
Decomp. temp.:
> 236 °C

Melting of the substance occurs between 206 and 236 °C, with onset at 223.45 °C and enthalpy of -97.70 J/g. Upon melting, the substance decomposes.

Conclusions:
The melting point is between 206 and 236 °C.
Executive summary:

Method

The test was performed according to internationally accepted testing procedures, using the Differential Scanning Calorimetry method for the analysis.

Results

Melting point between 206 and 236 °C, followed by decomposition.

Description of key information

The melting point is between 206 and 236 °C (onset at 223.45 °C and enthalpy -97.70 J/g); the substance decomposes before boiling.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
223.45 °C

Additional information

DSC method.