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Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
thermal analysis
Key result
Melting / freezing pt.:
136.1 °C
Atm. press.:
101.3 kPa
Decomposition:
yes
Decomp. temp.:
>= 330 °C

In a pre-test (one run from 25 to 400 °C, rate 20 °C/min) two endothermic heat effects were observed, the first peak starting at 137 °C the second at 330 °C. After the experiment, the sample had lost about 95.8% of its mass and stained the cup black. In the main test an endothermic heat effect was observed at 136 °C. During these runs, samples lost no weight and a colorless stringy drop remained.

Description of key information

136 °C (OECD 102, A.1), 133 °C  and 133-135 °C (DIN 53181)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
136 °C

Additional information

value obtained in a GLP-compliant guideline study