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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:
17 Sep 2014 to 28 Oct 2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Version / remarks:
July 1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
May 2008
Deviations:
no
GLP compliance:
no
Remarks:
The study was carried out in a laboratory accredited under GLP, however the study itself was not subject to GLP audit.
Type of method:
differential scanning calorimetry
Key result
Atm. press.:
>= 100.5 - <= 101.3 kPa
Decomposition:
yes
Decomp. temp.:
>= 284 °C
Remarks on result:
not determinable
Remarks:
Due to thermal decomposition.

Determinations 1 -6

Approximate onset of boiling endotherm.

- Determination 1: 291.62 °C (565 K)

- Determination 2: 284.62 °C (558 K)

- Determination 3: 238.58 °C (512 K)

- Determination 4: 214.74 °C (488 K)

- Determination 5:239.44 °C (513 K)

- Determination 6: 239.1 °C (512 K)

 

Extrapolated onset of boiling endotherm.

- Determination 1: 299.86 °C (573 K)

- Determination 2:296.49 °C (570 K)

- Determination 3: 254.12 °C (527 K)

- Determination 4: 247.76 °C (521 K)

- Determination 5: 285.45 °C (559 K)

- Determination 6: 284.66 °C (598 K)

Conclusions:
In a valid, reliable and conclusive study according to OECD TG 103 (1995) and Method A2 (EC) No 440/2008, the boiling temperature of the test item was determined. The test item boiled partially, with decomposition, from approximately 284 °C (557 K) at 100.5 to 101.3 kPa. Decomposition was observed both in air and under a nitrogen atmosphere. Therefore, due to thermal decomposition, a definitive boiling point cannot be determined.
Executive summary:

The study was performed to determine the boiling temperature of the test item according to OECD TG 103 (1995) and Method A2 (EC) No 440/2008. The test item boiled partially, with decomposition, from approximately 284 °C (557 K), at 100.5 to 101.3 kPa. Decomposition was observed both in air and under a nitrogen atmosphere. Therefore, due to thermal decomposition, a definitive boiling point cannot be determined.

Description of key information

Approximately 284 °C, however due to thermal decomposition, a definitive boiling point cannot be determined, differential scanning calorimetry (DSC), OECD 103, O'Connor 2014.

Key value for chemical safety assessment

Additional information