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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
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
GLP compliance:
yes
Type of method:
ebulliometer
Key result
Boiling pt.:
> 314 °C
Atm. press.:
ca. 101.3 kPa
Decomposition:
no

- The observed duplicate boiling points of the reference material were 245 and 244 °C for an average of 245 ± 1 °C at 101.3 kPa.  This compared to the reported boiling point of 248 °C at 101.3 kPa, indicating an average deviation/bias of 3 °C. 

- The duplicate test material warming curves did not show a distinct boiling plateau up to the maximum temperature of 311 °C.  This was supported by the fact that test material was not observed to boil during the test.  No test material colour change was observed during the test.  Therefore, the bias-corrected boiling point of the test material was greater than 314 °C at 101.3 kPa.  Boiling point measurement at reduced pressure was not performed because the calculated boiling point at atmospheric pressure was greater than 300 °C, which is the regulatory limit set by the US EPA (EPA, 1999) and Environment Canadian (CEPA, 1993).

Conclusions:
Under the conditions of this study the bias-corrected boiling point of the test material was greater than 314 °C at 101.3 kPa. No colour change was observed during the test.

Description of key information

Under the conditions of this study the bias-corrected boiling point of the test material was greater than 314 °C at 101.3 kPa. No colour change was observed during the test.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
314 °C

Additional information

The boiling point of the test material was investigated in accordance with the standardised guideline OECD 103 under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

The observed duplicate boiling points of the reference material were 245 and 244 °C for an average of 245 ± 1 °C at 101.3 kPa.  This compared to the reported boiling point of 248 °C at 101.3 kPa, indicating an average deviation/bias of 3 °C. The duplicate test material warming curves did not show a distinct boiling plateau up to the maximum temperature of 311 °C.

Under the conditions of this study the bias-corrected boiling point of the test material was greater than 314 °C at 101.3 kPa. No colour change was observed during the test.