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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 2016-03-02 to 2016-03-21
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
2008
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
Version / remarks:
1996
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
method according to Siwoloboff
Key result
Boiling pt.:
253.1 °C
Atm. press.:
1 013.25 hPa
Decomposition:
no

Three tests were carried out. The boiling temperature was determined and the boiling point of the test item was determined to be 253.1 ± 5.73 °C (95 % confidence interval) i.e. 526.3 K.

Atmospheric pressure, kPa

(at the measuring)

Boiling point, °C

(at standard atmospheric pressure)

98.31

251.3

98.30

255.7

98.33

252.3

Mean:

253.1

RSD (CV%):

0.9

Conf.int. (95%)

5.73

Conclusions:
The boiling point of the test item was determined to be 253.1 ± 5.73 °C i.e. 526.3 K. No observations were made which indicate a decomposition of the test item during the test.
Executive summary:

A study was conducted according to OECD test guideline 103, Regulation (EC) No 440/2008 method A.2 and EPA OPPTS 830.8220 to determine the boiling point of the test item using the principle according to Siwoloboff. A small amount of the test item was filled in a capillary tube and was heated in the electronically temperature controlled sample block. In a preliminary test a boiling point of 253.4 °C was observed. This value was introduced as expected boiling temperature for the main test. The sample was heated from 220 °C at rate 0.5 °C/minute. The sample was observed visually for any possible changes in appearance, consistency and colour. The phase transition from liquid to vapour was deduced by the continuous formation of steam bubbles leaving the inserted boiling capillary. This determination was done in triplicate. The atmospheric pressure was recorded. The boiling point was determined to be 253.1 °C i.e. 526.3 K at 98.31 hPa.

Description of key information

The boiling point of the test item was determined to be 253.1 ± 5.73 °C i.e. 526.3 K.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
253.1 °C

Additional information

A study was conducted according to OECD test guideline 103, Regulation (EC) No 440/2008 method A.2 and EPA OPPTS 830.8220 to determine the boiling point of the test item using the principle according to Siwoloboff. A small amount of the test item was filled in a capillary tube and was heated in the electronically temperature controlled sample block. In a preliminary test a boiling point of 253.4 °C was observed. This value was introduced as expected boiling temperature for the main test. The sample was heated from 220 °C at rate 0.5 °C/minute. The sample was observed visually for any possible changes in appearance, consistency and colour. The phase transition from liquid to vapour was deduced by the continuous formation of steam bubbles leaving the inserted boiling capillary. This determination was done in triplicate. The atmospheric pressure was recorded. The boiling point was determined to be 253.1 °C i.e. 526.3 K at 98.31 hPa.