Registration Dossier

Physical & Chemical properties

Melting point / freezing point

Currently viewing:

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:
09.05.2003
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
Directive 92/69/EWG
Deviations:
no
GLP compliance:
yes
Type of method:
method to determine freezing temperature
Key result
Melting / freezing pt.:
-40 °C
Atm. press.:
1 013.25 hPa
Decomposition:
no
Sublimation:
no

After the preliminary determination of the freezing point the measurement was repeated three times.

 

 Measurement 1  -39,5 °C
Measurement 2 -40 °C 
 Measurement 3 -40 °C 
Conclusions:
The melting point of the substance was determined to be -40 °C at 1013.25 hPa.
Executive summary:

A study was conducted according to Richtlinie 92/69/EWG to determine the melting point of the test item. The sample was placed in a vessel and placed in the cooling bath. Dry ice was added until the temperatur was 20 -25 °C below the sample temperature and the sample was stirred. Stirring was stopped after the sample crystallized. The temperature increase was monitored. The maximum temperature corresponds to the melting point. The melting point of the substance was determined to be -40 °C at 1013.25 hPa.

Description of key information

The melting point of the substance was determined to be -40 °C at 1013.25 hPa.

Key value for chemical safety assessment

Additional information