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Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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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:
2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Remarks on result:
not determinable
Remarks:
no melting; the test item solidifies amorphously
Key result
Melting / freezing pt.:
-82 °C
Remarks on result:
other: The test item was cooled down slowly to -150°C, but did not crystallize; instead it solidified amorphously. Upon heating a glass transition was registered at - 82 °C in both runs.
Conclusions:
no melting; the test item solidifies amorphously
Executive summary:

The melting temperature of the test item was determined by differential scanning calorimetry according to OECD Test Guideline 102 [adopted on 27 July 1995] andEU test method A.1 “Melting/freezing temperature“,Council Regulation (EC) No 440/2008 of 30 May 2008.

 

Melting temperature:          no melting; the test item solidifies amorphously

The test item was cooled down slowly to -150°C, but did not crystallize; instead it solidified amorphously. Upon heating a glass transition was registered at - 82 °C in both runs.

Description of key information

The melting temperature of the test item was determined by differential scanning calorimetry according to OECD Test Guideline 102 [adopted on 27 July 1995] andEU test method A.1 “Melting/freezing temperature“,Council Regulation (EC) No 440/2008 of 30 May 2008.

 

Melting temperature:          no melting; the test item solidifies amorphously

The test item was cooled down slowly to -150°C, but did not crystallize; instead it solidified amorphously. Upon heating a glass transition was registered at - 82 °C in both runs.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-82 °C

Additional information