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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:
March 17 to April 04, 2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised. Therefore full validation applies.
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Version / remarks:
dated 27. Jul. 1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
dated 31. May 2008
Deviations:
no
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. certificate)
Remarks:
inspected on 29 and 30 November 2010 / signed on 11 April 2011
Type of method:
method according to Siwoloboff
Key result
Boiling pt.:
> 407 °C
Atm. press.:
1 013 hPa
Decomposition:
no

Table 4.3/1: Observations

Temperature

Observation

200 °C

Start of test

Approx. 230 °C

Bubbles visible, which vanished again, but did not come out of the capillary

Approx. 270 °C

Colourless gas and condensate visible

Again and again bubbles visible, but no bubble chain

407 °C

Test terminated, no bubble chain could be observed

 

No boiling point could be detected up to a temperature of 407 °C following the SIWOLOBOFF method.

After cooling down, no change in the test item appearance was detectable.

Therefore, the boiling point of test item should be stated as > 407 °C.

Conclusions:
The boiling point of the test item was stated as > 407 °C (680.2 K) using Siwoloboff method.
No signs of decomposition were observed when the substance is heated up to 407°C.
Executive summary:

A study was conduted to determine the initial boiling point of the test substance under GLP according to EU Method A.2 and OECD 103 following the Siwoloboff method.

No boiling point could be detected up to a temperature of 407 °C and no change in the test item appearance was detectable visually after cooling down.

Therefore, the boiling point of the test substance was stated as > 407 °C (680.2 K), limit of the applicability domain of the Siwoloboff method.

Description of key information

The boiling point of the test item has been stated as > 407 °C (680.2 K) using the Siwoloboff method.

No signs of decomposition were observed when the substance is heated up to 407°C.

Key value for chemical safety assessment

Additional information

A reliable experimental study, conducted according to a recognized OECD/EC, following the Siwoloboff method and under GLP, is available. It is considered as a key study. However, no boiling point could be determined up to 407°C (680.2K, limit of applicability domain of Siwoloboff method) and no key value can be retained as key data for purpose CSA.