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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:
1983
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
GLP compliance:
yes
Type of method:
method according to Siwoloboff
Decomposition:
yes
Decomp. temp.:
> 190 °C
Remarks on result:
other: Decomposition prior to boiling
Boiling pt.:
349 °C
Atm. press.:
101.3 kPa
Remarks on result:
other: extrapolated
Boiling pt.:
131 °C
Atm. press.:
11 Pa
Remarks on result:
other: measured by TGA

Boiling point determination according to Siwoloboff gave the following results:

Temperature and Observation:

ca..l90°C - sample returns yellow

ca. 285°C - sample returns brown

ca. 296 °C - sample returns dark brown

ca. 300 °C - sample returns black,

- evolution of gas bubbles, no boiling

kp (98.3 kPa): >573 K

Conclusions:
The test substance decomposes at >190°C before boiling

Description of key information

The study provided was conducted to recognised testing guidelines and with GLP certification.

Key value for chemical safety assessment

Additional information

decomposed before boiling (decomposition at >190°C)

The decomposition of substance was observed by determination according to Siwoloboff.

Additionally the boiling point of test substance was measured to be 131°C at 11 Pa by TGA and extrapolated to be 349°C at 1013 hPa