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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:
other: According to international guideline(s), GLP-compliant, performed in recognized contract research organization, no restrictions, fully adequate for assessment.
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
GLP compliance:
yes (incl. certificate)
Type of method:
method according to Siwoloboff
Key result
Boiling pt.:
> 246 °C
Atm. press.:
>= 98 - <= 99.8 kPa
Decomposition:
yes
Decomp. temp.:
>= 251 °C

In the main tests, where the samples were heated up to 400 °C, bubbling started between 222-255 °C (mean value 246 °C, coefficient of variation 14.5, 95% confidence interval 12.2, n=8) . Due to the UVCB nature of the test material, bubbling was not continuously but occurred at intervals during the heating periods. The boiling point of the test material is given as the mean temperature above which the test material started showing boiling behaviour.

The test material was observed to darken from approximately 251 °C, indicating decomposition.

Description of key information

> 246ºC (OECD 103, EU A.2)

Key value for chemical safety assessment

Additional information

Boiling point at 101 325 Pa > 246°C

The test material started darkening above 251 °C, indicating decomposition. Due to the UVCB nature of the test material boiling was observed at intervals during heating periods. The boiling point of the test material is given as the mean temperature above which the test material started showing boiling behaviour.