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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:
experimental dates: 10-25 May 2012
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, and under GLP. The substance is adequately characterised. Validation applies, with minor restrictions for inaccuracy.
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Version / remarks:
27th July 1995
Deviations:
yes
Remarks:
heating rate
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
Regulation (EC) No 440/2008
Deviations:
yes
Remarks:
heating rate
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. certificate)
Remarks:
Swiss GLP compliance programme (inspected on November 15 and 16, 2011/ signed on May 01, 2012)
Type of method:
method according to Siwoloboff
Specific details on test material used for the study:
STORAGE CONDITIONS OF TEST MATERIAL
Refrigerator (between 0 and 10 °C under nitrogen)
Key result
Boiling pt.:
266 °C
Atm. press.:
98 kPa

Table 4.3/1: Results

STAGE OF TEST

TEMPERATURE (K)

PRELIMINARY TEST

DETERMINATION 1

DETERMINATION 2

Beginning of measurement

543

532

532

Bubbles were emerged from the capillary 

567

539

539

Atmospheric pressure (kPa)

98.0

98.0

98.0

The boiling temperature of the test substance has been determined to be 539 ± 2 K (266 ± 2 °C) at 98.0 kPa.

Executive summary:

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

Two main runs were performed, and the mean final temperature was retained.

The boiling temperature of test substance has been determined to be 539 ± 2 K (266 ± 2 °C) at 98.0 kPa.

Description of key information

The boiling point was measured at 266°C, under 98.0 kPa (not corrected to normal atmP).

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
266 °C

Additional information

A reliable experimental study, conducted according to a recognized OECD/EC method and under GLP, is available. Despite minor restrictions for accuracy, it is considered as a key study, and the result is retained as key data.