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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:
02 MAR 2000 - 20 MAR 2000
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
EG-Guideline 92/69/EEC A.1.
Deviations:
no
GLP compliance:
yes
Type of method:
differential scanning calorimetry
Melting / freezing pt.:
135.5 °C
Remarks on result:
other: refer to "Remarks"
Remarks:
no atm. pressure mentioned in the report, but 1013 hPa as standard conditions can be assumed

The preliminary measurement in a closed glass pan shows an endothermic effect (melting) in the range 110 -155 °C, with an onset of 136.6 °C.

In aluminium pans, the diagrams show the endothermal effect (melting) in the range between 110 and 150 °C, with a medium onset of 135.5 °C and a second endothermal effect (boiling) is in the range between 265 and 345 °C, directly followed by an exothermal effect beginning at about 345 °C.

Conclusions:
The test item has a mean melting point of 135.5 °C.
Executive summary:

The determination of the melting point was carried out by differential scanning calorimetry (DSC) according to EG-Guideline 92/69/EEC A.1. The test substance shows a melting point in the temperature range 110-150 °C with an onset of 135.5 °C.

Description of key information

The determination of the melting point was carried out by differential scanning calorimetry (DSC) according to EG-Guideline 92/69/EEC A.1. The test substance shows a melting point in the temperature range 110-150 °C with an onset of 135.5 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
135.5 °C

Additional information

No atm. pressure is mentioned in the report, but 1013 hPa as standard conditions can be assumed. This does not affect the chemical safety assessment.