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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:
23.11.2012 - 01.02.2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
(EC) No. 440/2008
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
no
GLP compliance:
no
Type of method:
differential scanning calorimetry
Key result
Boiling pt.:
> 394 - 396 °C
Atm. press.:
1 013.3 hPa
Decomposition:
no

The measurements in aluminium crucibles with a hole showed a second endothermic effect (boiling) in the temperature range 350 °C to 415 °C with onset temperatures of 395.2 °C, 393.5 °C and 393.0 °C., respectively.

 

 

Onset / °C

Temperature range / °C

Crucible

395.23

360 -415

Aluminium with a hole

 393 .46  350 -415

  Aluminium with a hole

 392.97    350 -415

 Aluminium with a hole

For the correction of the boiling point to standard atmospheric pressure (1013.3 hPa) the equation, table and graphs of H.B. Hass and R.F. Newton in „CRC Handbook of Chemistry and

Physics, 74th ed. 1993-1994", pages 15-16 and 15-17 were used.

Conclusions:
The test item has a boiling range between 394 °C and 396 °C under atmospheric conditions.
Executive summary:

A study was conducted according to OECD test guideline 103, Regulation (EC) No 440/2008 method A.2 to determine the boiling point of the test item using differential scanning calorimetry. The test item was weighed out into an aluminium crucible under an inert atmosphere (nitrogen). Two tests with about 10 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. In a defined atmosphere (nitrogen) the test item is heated up from ambient temperature to the final temperature (25 and 500 °C, respectively) at a constant heating rate (10 K/min). The quantity of heat absorbed or released is measured and recorded. The measurements in aluminium crucibles with a hole showed boiling range between 394 °C and 396 °C under atmospheric conditions.

Description of key information

The test item has a boiling range between 394 °C and 396 °C under atmospheric conditions.

Key value for chemical safety assessment

Additional information

A study was conducted according to OECD test guideline 103, Regulation (EC) No 440/2008 method A.2 to determine the boiling point of the test item using differential scanning calorimetry (reference 4.3 -1). The test item was weighed out into an aluminium crucible under an inert atmosphere (nitrogen). Two tests with about 12 -23 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. In a defined atmosphere (nitrogen) the test item is heated up from ambient temperature to the final temperature (150 and 500 °C, respectively) at a constant heating rate (10 K/min). The quantity of heat absorbed or released is measured and recorded. The measurements in aluminium crucibles with a hole showed a boiling range between 394 °C and 396 °C under atmospheric conditions.