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Melting point / freezing point

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Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Remarks:
measurement according to standard operating procedure of testing institute
Principles of method if other than guideline:
Differential Thermal Analysis
Type of method:
differential scanning calorimetry
Decomposition:
yes
Decomp. temp.:
>= 324 °C
Remarks on result:
other: mean of 2 measurements

the test material starts to decompose with an onset temperature of 324°C, peak 342°C

no endothermal process (melting) was recorded

decomposition energy 372 J/g

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Remarks:
measurement according to standard operating procedure of testing institute
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Principles of method if other than guideline:
Differential Thermal Analysis
Type of method:
differential scanning calorimetry
Decomposition:
yes
Decomp. temp.:
>= 315 °C
Remarks on result:
other: mean of 2 measurements

the test material starts to decompose with an onset temperature of 315°C, peak 335°C

no endothermal process (melting) was recorded

decomposition energy 410 J/g

Description of key information

Key value for chemical safety assessment

Additional information

the bulk form decomposes without melting at an onset of 324°C

the nanoform decomposes without melting at an onset of 315°C