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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
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
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
yes
Type of method:
capillary method
Key result
Atm. press.:
ca. 101 325 Pa
Decomposition:
yes
Remarks:
The substance appeared brown, indicating decomposition, at about 260 °C.
Decomp. temp.:
ca. 260 °C

Testing the control substance caffeine (mean melting temperature of 236.1 °C; target melting temperature: 236.0 °C) confirmed the reliability of the apparatus.

Conclusions:
As the substance decomposes at about 260 °C no melting point could be determined.
Executive summary:

The melting point of the registered substance was determined in an experimental study under GLP conditions according to OECD Test Guideline 102. As the substance decomposes at about 260 °C no melting point could be determined.

Description of key information

As the substance decomposes at 260 °C no melting point was determined (reference 4.2-1).

Key value for chemical safety assessment

Additional information

The melting point of the substance was determined in an experimental study under GLP conditions according to OECD Test Guideline 102. As the substance decomposes at 260 °C no melting point was determined.