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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:
22 Jul - 17 Oct 2005
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Qualifier:
no guideline followed
Principles of method if other than guideline:
With the DSC method, endothermic (melting) and exothermic (decomposition) responses were investigated in the temperature range from ca. 136 to >300 °C
GLP compliance:
no
Type of method:
other: thermostability analysis using differential scanning calorimetry
Melting / freezing pt.:
> 300 °C
Decomposition:
yes
Decomp. temp.:
> 136 - < 239
Remarks on result:
other: In the temperature range from ca. 136 to >300 °C no endothermic signal observed (no melting). Heat of decomp. at least -540 g/J

Temperature "onset" (first deviation from the baseline): 136/150 °C

Extrapolated temperature "onset": 204/208 °C

Temperature "max" (oven temperature at which the heat flow curve reaches maximum): 239/238 °C

Description of key information

> 300 °C

Key value for chemical safety assessment

Additional information

Substance decomposes before melting. The analysis was conducted using differential scanning calorimetry.