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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
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