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Physical & Chemical properties

Melting point / freezing point

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melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental phase: November 2017
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
The study was conducted according to an internationally recognised method. No deviation affected the quality of the study. The substance is considered to be adequately characterised. Therefore full validation applies.
according to guideline
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
July, 27, 1995
according to guideline
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
Regulation (EC) n°440/2008
GLP compliance:
not required for physchem data, unless relating to CLP
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
-62.1 °C
Atm. press.:
99 kPa

Assay 1: -62.0 °C (99.0 kPa)

Assay 2: -62.2 °C (99.0 kPa)

Mean (+/- Standard deviation): -62.1 +/- 0.2 °C

Executive summary:

The test substance was first cooled down to -80°C, then the melting point was determined according to OECD102/EU A.1 guideline, using Differential Scanning Calorimetry method.

Two main runs were performed, under nitrogen flow; onset results were found consistent, so the mean final temperature was retained.

The melting temperature of test substance has been determined to be -62.1 °C.

Description of key information

Experimental melting point (i.e. transition from solid to liquid) under N2 = -62.1°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-62.1 °C

Additional information

A fully reliable experimental study, conducted according to a recognized OECD/EC method, is available. Therefore it is considered as a key study, and the result is retained as key data.