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Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
6-10.9.2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Qualifier:
equivalent or similar to
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
no
GLP compliance:
no
Type of method:
differential scanning calorimetry
Key result
Atm. press.:
101.325 kPa
Decomposition:
yes
Decomp. temp.:
210 °C

A DSC-curve was recorded during the experiment. A broad exothermic peak was observed between 210 and 320 °C, caused by thermal degradation of the test substance. The extrapolated onset temperature of the exothermic peak was 239.1 °C. The broad endothermic peak was observed between 490 and 520 °C. After the experiment the sample had lost 1.29 mg (81.65 %) of its mass and the residue had a black colour.

No endothermic peak corresponding to boiling temperature of the test substance was recorded in the tested temperature range from 25 to 640 °C. Thermal degradation of the test substance connection with the loss of the mass started at the temperature 210 °C.

Boiling temperature of the test substance could not be determined because of thermal decomposition of the sample.

Conclusions:
Under the conditions of this study, the boiling temperature of the test substance could not be determined because of thermal decomposition of the sample.
Executive summary:

The boiling temperature of the test material was investigated using methodology equivalent to that outlined in the standardised guidelines OECD 103 and EU Method A.2 using Differential Scanning Calorimetry (DSC). 

A DSC-curve was recorded during the experiment. A broad exothermic peak was observed between 210 and 320 °C, caused by thermal degradation of the test substance. The extrapolated onset temperature of the exothermic peak was 239.1 °C. The broad endothermic peak was observed between 490 and 520 °C. After the experiment the sample had lost 1.29 mg (81.65 %) of its mass and the residue had a black colour.

No endothermic peak corresponding to boiling temperature of the test substance was recorded in the tested temperature range from 25 to 640 °C. Thermal degradation of the test substance connection with the loss of the mass started at the temperature 210 °C.

Under the conditions of this study, the boiling temperature of the test substance could not be determined because of thermal decomposition of the sample.

Description of key information

The boiling temperature of the test substance could not be determined because of thermal decomposition of the sample.

Key value for chemical safety assessment

Additional information

The boiling temperature of the test material was investigated using methodology equivalent to that outlined in the standardised guidelines OECD 103 and EU Method A.2 using Differential Scanning Calorimetry (DSC). 

A DSC-curve was recorded during the experiment. A broad exothermic peak was observed between 210 and 320 °C, caused by thermal degradation of the test substance. The extrapolated onset temperature of the exothermic peak was 239.1 °C. The broad endothermic peak was observed between 490 and 520 °C. After the experiment the sample had lost 1.29 mg (81.65 %) of its mass and the residue had a black colour.

No endothermic peak corresponding to boiling temperature of the test substance was recorded in the tested temperature range from 25 to 640 °C. Thermal degradation of the test substance connection with the loss of the mass started at the temperature 210 °C.

Under the conditions of this study, the boiling temperature of the test substance could not be determined because of thermal decomposition of the sample.