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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:
13 September 2012 to 12 December 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Boiling pt.:
295 °C
Atm. press.:
101.5 - 102.1 kPa
Decomposition:
no
Remarks on result:
other: 295 ± 2 °C
Boiling pt.:
568 K
Atm. press.:
101.5 - 102.1 kPa
Decomposition:
no
Remarks on result:
other: 568 ± 2 K

The additional test carried out indicated that the small, variable endotherms were not consistent with any changes in appearance/ physical state of the test material.

 

Table 1: Summary of Thermographic Data

Determination

Thermal Event

Interpretation

Atmospheric Pressure (kPa)

Temperature

°C

K

1

Sharp endotherm

Extrapolated onset of boiling

101.5

293.07

566.22

2

Sharp endotherm

Extrapolated onset of boiling

102.1

295.33

568.48

3

Sharp endotherm

Extrapolated onset of boiling

102.1

297.43

570.58

Mean boiling temperature 295 ± 2 °C

Conclusions:
Under the conditions of this study the boiling temperature of the test material was determined to be 295 ± 2 °C (568 ± 2 K) at 101.5 to 102.1 kPa.
Executive summary:

The boiling point of the test material was investigated in accordance with the standardised guidelines EU Method A.2 and OECD 103 under GLP conditions.

The determination was carried out by differential scanning calorimetry in a nitrogen atmosphere. Three aliquots of test material weighing 0.0066, 0.0046 and 0.0052 g were placed in pre-pierced aluminium crucibles and the crucibles heated from 20 to 400 °C. The appearance of the samples was determined before and after the test.

Under the conditions of this study the boiling temperature of the test material was determined to be 295 ± 2 °C (568 ± 2 K) at 101.5 to 102.1 kPa.

Description of key information

The boiling temperature of the test material was determined to be 295 ± 2 °C (568 ± 2 K) at 101.5 to 102.1 kPa.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
295 °C

Additional information

The boiling point of the test material was investigated in accordance with the standardised guidelines EU Method A.2 and OECD 103 under GLP conditions. The study was assigned a reliability score of 1 in accordance with the criteria for assessing data quality set forth by Klimisch et al. (1997).

The determination was carried out by differential scanning calorimetry in a nitrogen atmosphere. Three aliquots of test material weighing 0.0066, 0.0046 and 0.0052 g were placed in pre-pierced aluminium crucibles and the crucibles heated from 20 to 400 °C. The appearance of the samples was determined before and after the test.

Under the conditions of this study the boiling temperature of the test material was determined to be 295 ± 2 °C (568 ± 2 K) at 101.5 to 102.1 kPa.