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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:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Remarks:
The study was conducted according to an internationally recognised method. The substance is considered to be adequately characterised with its purity. Therefore validation applies, with minor restrictions due to heating rate.
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Deviations:
yes
Remarks:
heating rate slightly exceed maximum of 1K/min as recommended
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
yes
Remarks:
heating rate slightly exceed maximum of 1K/min as recommended
GLP compliance:
no
Type of method:
method according to Siwoloboff
Boiling pt.:
597 K
Atm. press.:
99.4 kPa
Decomposition:
no
Key result
Boiling pt.:
324 °C
Atm. press.:
99.4 kPa
Decomposition:
no

STAGE OF TEST TEMPERATURE (K)
PRELIMINARY TEST DETERMINATION 1 DETERMINATION 2
Beginning of measurement 363 574 567
Bubbles were emerged from the capillary 606 598 595
Atmospheric pressure (kPa) 99.4 99.4 99.4

Both determinations are within the limits of accuracy (+/-2K), therefore the average value is retained.

Executive summary:

The boiling point of the test substance was determined according to OECD 103/EU A2 guideline, Siwoloboff (capillary) method.

Two main runs were performed, and the mean value was retained. The result was not corrected to normal atmospheric pressure.

Measured boiling point = 324°C under 99.4 kPa.

Description of key information

Experimental result under 99.4 kPa, not corrected for normal atmospheric pressure.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
324 °C

Additional information

A reliable study, conducted according to a recognized OECD/EU method is available. Despite minor restrictions on accuracy, it is considered as a key study. The result is retained as key data for purpose of CSA.