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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:
Start date of the experimental work: 12 June 2009 and Completion date of the experimental work: 02 July 2009.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
method to determine freezing temperature
Key result
Melting / freezing pt.:
>= -17 - <= -4.7 °C
Remarks on result:
other: Sample becomes very viscous at lower temperatures and forms a waxy substance at the final freezing point.

Full test results:

Run number 
 Mass of sample used (g)  12.2 12.2 
 Initial Freezing temperature (°C)  -5.0 -4.7 
 Final Freezing temperature (°C)  -17.0  -17.0

Result: -17.0 to -4.7°C

The mean of at least two measurements, which are in the range of the estimated accuracy, is reported as the freezing temperature/range.

Sample becomes very viscous at lower temperatures and forms a waxy substance at the final freezing point.

Conclusions:
Result : -17.0 to -4.7°C.
Sample becomes very viscous at lower temperatures and forms a waxy substance at the final freezing point.

Description of key information

The freezing range is -17 to -4.7 ˚C (< 0°C).


Sample becomes very viscous at lower temperatures and forms a waxy substance at the final freezing point.  

Key value for chemical safety assessment

Additional information