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Diss Factsheets

Physical & Chemical properties

Boiling point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 2008-01-09 to 2008-01-25
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The study was regarded as reliable because it was conducted in compliance with GLP regulation and guidelines.
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
Commission Directive 92/69/EEC, Annex V
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Version / remarks:
1995-07-27
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
Version / remarks:
1996/08
Deviations:
no
Principles of method if other than guideline:
A small amount of the test item is heated in the electronic controlled sample block and the temperature around the sample is displayed. The sample is observed visually while raising the temperature. A phase transformation from liquid to vapour usually is deduced by the formation of bubbles. The test item is assessed visually for any possible changes in its appearance, consistency and colour. The initial boiling temperature is registered with the corresponding heating temperature.
GLP compliance:
yes (incl. QA statement)
Type of method:
method according to Siwoloboff
Key result
Boiling pt.:
248.7 °C
Atm. press.:
98 kPa
Decomposition:
no
Remarks on result:
other: 248.7 ± 0.009 °C (95 % CI)

Using a linear heating rate of 0.5 °C/min, the boiling point of the test item was found to be 248.7 +/-0.009 °C (i.e. 521.9 K) at 98.0 kPa (95 % confidence interval).

Measured temperatures corresponding to the boiling point of the test item (three experiments (I, II, III) with two parallel samples each (1, 2):

Sample  I/1  I/2  II/1  II/2  III/1  III/2 

Mean 
 Boiling point (°C)  248.8 248.8   248.6 248.6  248.7  248.7   248.7
Conclusions:
Using a linear heating rate of 0.5 °C/min, the boiling point of the test item was found to be 248.7 ± 0.009 °C (i.e. 521.9 K) at 98.0 kPa (95 % confidence interval).
Executive summary:

A study was conducted according to OECD test guideline 103, Regulation (EC) No 92/69/EEC 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. Using a linear heating rate of 0.5 °C/min, the boiling point of the test item was found to be 248.7 ± 0.009 °C (i.e. 521.9 K) at 98.0 kPa (95 % confidence interval).

Description of key information

Using a linear heating rate of 0.5 °C/min, the boiling point of the test item was found to be 248.7 ± 0.009 °C (i.e. 521.9 K) at 98.0 kPa (95 % confidence interval).

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
248.7 °C

Additional information

A study was conducted according to OECD test guideline 103, Regulation (EC) No 92/69/EEC 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. Using a linear heating rate of 0.5 °C/min, the boiling point of the test item was found to be 248.7 ± 0.009 °C (i.e. 521.9 K) at 98.0 kPa (95 % confidence interval).