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Boiling point

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Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
7 May 2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Qualifier:
according to
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
GLP compliance:
yes (incl. certificate)
Remarks:
Hess, Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
Type of method:
differential scanning calorimetry
Key result
Atm. press.:
ca. 1 013 hPa
Decomposition:
yes
Decomp. temp.:
>= 230 °C

The measurements in aluminium crucibles with a hole showed no endothermal effect between the melting and the decomposition of the test item. The test item showed no boiling point at atmospheric conditions because it decomposed first starting at a temperature of 230 °C (thermal stability).

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
17 to 24 November 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Qualifier:
according to
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
GLP compliance:
yes (incl. certificate)
Remarks:
Hess, Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
Type of method:
differential scanning calorimetry
Key result
Atm. press.:
ca. 1 013 hPa
Decomposition:
yes
Decomp. temp.:
>= 235 °C

An exothermal effect was observed after the melting in the temperature range of 240 - 365 °C (235 - 420 °C thermal stability). No endothermic effect was observed between the melting of the test item and its decomposition. Therefore the test item had no boiling point under atmospheric conditions.

Description of key information

The substance has no boiling point at atmospheric conditions because it decomposes first starting at a temperature of ca. 230 °C (pure substance) and 235 °C (technical substance). (OECD Guideline 103, DSC)

Key value for chemical safety assessment

Additional information