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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:
February and March 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
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 with composition. Therefore validation applies without restrictions.
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
July, 27, 1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
Regulation (EC) n°440/2008
Deviations:
no
GLP compliance:
no
Remarks:
not required for physchem data, unless relating to CLP
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
< -80 °C
Atm. press.:
101.6 kPa

Assay 1: < -80 °C (101.6 kPa)

Assay 2: < -80 °C (101.6 kPa)

Mean: < -80 °C

No melting and no freezing points are detected with measurements at the lowest possible DSC temperature. Only a threshold value of below -80 °C can be provided.

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. No phase transition was observed during both cooling and heating phases.

The melting point of the test item is stated as lower than -80 °C.

Description of key information

No freezing or melting observed down to -80°C.

Key value for chemical safety assessment

Additional information

A fully reliable experimental study, conducted according to a recognized OECD/EC method, is available. It is considered as a key study. Since the result is expressed as a limit value, it cannot be used as key data (no "<" sign allowed).