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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 May 26, 2010 to August 19, 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted according to the OECD 102 Guideline and the EU A.1 method, under GLP without deviation and with certificate of analysis included.
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
capillary method
Key result
Melting / freezing pt.:
>= -58.2 - <= -46 °C
Atm. press.:
1 atm
Decomposition:
no
Sublimation:
no
Remarks on result:
other: estimated accuracy +/- 0.4 °C

Pre-test results:

Room temperature: liquid

5°C: liquid

- 20°C: slightly frozen

- 80°C: solid

Main study results:

The determination was performed in duplicate. The following values were recorded:

Melting point/range

Begin

End

First determination

-58.2 °C(215.0 K)

-46.2 °C(227.0 K)

Second determination

-58.2 °C(215.0 K)

-45.8 °C(227.4 K)

Conclusions:
The measured melting range of the test item is -58.2 to -46.0 °C (215.0 to 227.2 K).
Executive summary:

The test item showed a melting range, not a melting point, which was determined as -58.2 to -46.0 °C with an estimated accuracy of ± 0.4 °C.

No observations were made which might cause doubts on the validity of the study outcome. Therefore, the result of the study is considered valid.

Description of key information

The test item showed a melting range, not a melting point, which was determined as -58.2 to -46.0°C with an estimated accuracy of ± 0.4°C.

Key value for chemical safety assessment

Additional information

Key study conducted according to the OECD 102 Guideline and the EU A.1 method, under GLP without deviation and with certificate of analysis included. Therefore a reliability of 1 is assigned and the result of this key study is proposed as the end point value.