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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:
From 06 to 3 March 2018.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
The study was conducted according to an internationally recognised method, and under GLP. The test substance is adequately characterised. Therefore full validation applies.
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
2008
Deviations:
no
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. certificate)
Remarks:
Inspected on 4,5 and 6 July 2016/ Signed on 10 January 2017
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
>= -72.9 - <= -17.6 °C
Atm. press.:
974 hPa

Results

All the raw data (calibration, pre-test and main tests) is in the experimental report.

Pre-study

Melting range: -70.2 to -37.6°C

Main tests:

Melting range was observed between -73.0 °C (onset temperature of the first melting peak) and -17.3 °C (top of the last melting peak).

Melting range was observed between -72.8 °C (onset temperature of the first melting peak) and -18.0 °C (top of the last melting peak).

The crucibles was visually checked after the determination: By opening the crucible, no test item left in the crucible.

Conclusion

The melting range of the substance was determined as -72.9 °C to -17.6 °C.

Conclusions:
The melting range of the substance was determined as -72.9 °C to -17.6 °C.
Executive summary:

The study was performed in order to determine the melting point of test item according to OECD 102, resp. EU A.1 guideline, using the DSC method.

Description of key information

Melting range: -72.9 °C to -17.6 °C.

Key value for chemical safety assessment

Additional information

A fully reliable experimental study, conducted according to OECD 102/ EU A1 guideline is available.

It is considered as a key study and the result is retained as key data.