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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:
From November 01 to 06, 2000
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The study was conducted according to an internationally recognised method. The substance is considered to be adequately characterised with its purity. Therefore full validation applies.
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
Qualifier:
according to
Guideline:
other: ASTM E537-86
Deviations:
no
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. certificate)
Remarks:
UK GLP Compliance Programme (inspected on February 28, 2000/ signed on April 26, 2000)
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
Physical state: Clear, colourless liquid.
Storage conditions of test material: Room temperature, in the dark, under nitrogen.
Key result
Boiling pt.:
279 °C
Atm. press.:
97.26 kPa
Decomposition:
no

Table 4.3/1: Boiling point – results

Thermal Event

Interpretation

Temperature (°C)

Temperature (K)

Determination 1

endotherm

boiling temperature

279.3

552

Determination 2

endotherm

boiling temperature

278.7

552

 

Atmospheric pressure: 97.26 kPa

Mean boiling temperature: 552 ± 0.5 K (279 °C)

Executive summary:

The boiling point of the test substance was determined under GLP by differential scanning calorimetry (DSC) using the procedure specified in ASTM E537-86 and according to EU Method A.2 (Boiling Temperature).

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

The boiling temperature of test substance has been determined to be 552 ± 0.5 K (279 °C) at an atmospheric pressure of 97.26 kPa, under nitrogen.

Description of key information

Boiling point = 279 °C under inert (nitrogen) atmosphere and 97.26 kPa (not corrected).

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
279 °C

Additional information

A fully reliable experimental study, conducted according to a recognized method (EU A2) and under GLP, is available. Therefore, it is considered as a key study, and the result is retained as key value.