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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:
experimental study
Adequacy of study:
key study
Study period:
5 October 2006 - 12 January 2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
27 July 1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
December 1992
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
182 °C
Atm. press.:
101.325 kPa
Decomposition:
yes
Decomp. temp.:
182 °C
Conclusions:
The melting temperature of the test substance is 182°C. Reaction and/or decomposition of the test substance were observed during the melting process.
Executive summary:

In the DSC experiments, an endothermic peak was observed between 150°C and 210°C, which was probably caused by melting. The extrapolated onset temperature was determined to be 182°C. After the experiment, a black coloured molten residue remained in the sample container. The change of the colour of the test substance indicates reaction and/or decomposition during the phase transition.

Description of key information

In the DSC experiments, an endothermic peak was observed between 150°C and 210°C, which was probably caused by melting. The extrapolated onset temperature was determined to be 182°C. After the experiment, a black coloured molten residue remained in the sample container. The change of the colour of the test substance indicates reaction and/or decomposition during the phase transition.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
182 °C

Additional information