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Physical & Chemical properties

Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From June 02, 2012 to August 21, 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
Deviations:
no
GLP compliance:
yes
Remarks:
(OECD GLP)
Type of method:
differential scanning calorimetry
Key result
Decomposition:
yes
Decomp. temp.:
> 300 °C
Remarks on result:
other: The boiling point of the test substance could not be determined as it decomposes before boiling at >300°C.

Preliminary test results:

From 250°C upwards the weight of the sample decreased significantly. At 380°C the sample weight had decreased by 25%. After the experiment, a brown residue remained in the sample container (original colour: brown).

Main study results:

An exothermic peak started at 300°C, the effect was most likely obtained due to reaction and/or decomposition of the test substance. After the experiment, a brown residue remained in the sample container.

Reaction and/or decomposition of the test substance was observed at temperatures of > 300°C (> 573K). Boiling of the test substance was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test substance has no boiling temperature.

Conclusions:
The boiling point of the test substance could not be determined as it decomposes before boiling at >300°C.
Executive summary:

A study was conducted to determine the boiling point of the test substance, using differential scanning calorimetry (DSC) according to OECD Guideline 103, EU Method A.2 and US EPA Guideline 830.7220. Reaction and/or decomposition of the test substance was observed at temperatures of > 300°C (> 573K). Boiling of the test substance was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test substance has no boiling temperature (Baltussen, 2017).

Description of key information

The boiling point was determined using differential scanning calorimetry (DSC) according to OECD Guideline 103, EU Method A.2 and US EPA Guideline 830.7220 (Baltussen, 2012).

Key value for chemical safety assessment

Additional information

The test substance decomposes before boiling at >300°C.