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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:
November 24, 2017
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
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
> -20 °C
Atm. press.:
1 013 hPa
Decomposition:
no
Sublimation:
no

One run was performed:

batch 56630: 22.40 mg test substance in 40 μl crucibles, temperature range -30 °C to 40 °C, heating rate 5 °/min:

The curve of the DSC showed no endothermal incident; therefore the melting/freezing temperature has been determined to be below -20 °C.

Conclusions:
Under the study conditions, the curve of the DSC showed no endothermal incident; therefore the melting/freezing temperature of the test substance has been determined to be below -20 °C.
Executive summary:

A study was conducted to determine the melting point of the test substance using differential scanning calorimetry according to OECD Guideline 102 and EU Method A.1. One run was performed testing 22.40 mg of the test substance in 40 μL crucibles. The temperature was ranging from -30 °C to 40 °C and the heating rate was 5 °/min. Under the study conditions, the curve of the DSC showed no endothermal incident; therefore the melting/freezing temperature of the test substance has been determined to be below -20 °C (Sablowski, 2017).

Description of key information

The melting point was determined according to OECD Guideline 109 an EU Method A.1 (Sablowski, 2017).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-20 °C

Additional information