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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:
07/07/2009 – 08/07/2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes
Type of method:
method to determine freezing temperature
Melting / freezing pt.:
74.7 °C
Remarks on result:
other: Run 1 (10.2 g sample used): Initial Freezing Temperature
Melting / freezing pt.:
74.6 °C
Remarks on result:
other: Run 2 (10.4 g sample used): Initial Freezing Temperature
Melting / freezing pt.:
-12.2 °C
Remarks on result:
other: Run 1 (10.2 g sample used): Final Freezing Temperature
Melting / freezing pt.:
-12.2 °C
Remarks on result:
other: Run 2 (10.4 g sample used): Final Freezing Temperature

Sample was quickly transferred into the freezing point apparatus for testing after sample preparation. Initial crystallization was observed at 74.7 °C and 74.6 °C respectively. At final temperature, sample surface did not move when sample tube was tilted at an angle of 90°.

Conclusions:
The initial and final freezing temperatures noted were 74.7 and -12.2 °C respectively.

Description of key information

The melting range is -12.2 to 74.7 ˚C.

Key value for chemical safety assessment

Additional information