Registration Dossier

Diss Factsheets

Physical & Chemical properties

Boiling point

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
20.10.2005-21.02.2006
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
no
GLP compliance:
no
Type of method:
differential scanning calorimetry
Key result
Boiling pt.:
336.16 °C
Atm. press.:
ca. 1 013.25 hPa
Decomposition:
no

Two measurements in aluminium crucibles with a hole showed an endothermic effect in the temperature range 280 - 350 °C with an onset temperature of approximately 336 °C.

Ident No.

Onset / °C

Temperature range/°C

Crucible

22673

336.16

 280 - 350

Aluminium with a hole

22674

336.86

 280 - 350

Aluminium with a hole

For the correction Δt of the boiling point to standard atmospheric pressure (1013.3 hPa) the equation, table and graphs of H.B. Hass and R.F. Newton in „CRC Handbook of Chemistry and Physics, 74th ed. 1993-1994", pages 15-16 and 15-17 were used.

 

Δt = [(273.15+t) (3.0057-log p)] / [φ + 0.15(3.0057-log p)]          (t in °C, p in hPa)

For the estimation of φ the test item was classified in group 2 (hydrocarbons) according to the table of H.B Hass and R.F. Newton.

Ident No.

Onset / °C

Atmospheric pressure / hPa

Φ (group 2)

Δt/ °C

Boiling point at 1013.3 hPa /°C

22673

336.16

 1009

5.232

0.211

336.37

22674

336.86

 1009

5.232

0.211

336.07

The boiling point of the test item at atmospheric pressure (1013.3 hPa) is 336.2 °C.

Conclusions:
The boiling point of the test item at atmospheric pressure (1013.3 hPa) is 336.2 °C.
Executive summary:

A study was conducted according to OECD test guideline 103 and Regulation (EC) No 440/2008 method A.2 to determine the boiling point of the test item using differential scanning calorimetry. The test item and the reference are heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Open crucibles are used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released is measured and recorded. The test item had a boiling point of 336.2 °C under atmospheric conditions.

Description of key information

The boiling point of the test item at atmospheric pressure (1013.3 hPa) is 336.2 °C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
336.2 °C

Additional information

A study was conducted according to OECD test guideline 103 and Regulation (EC) No 440/2008 method A.2 to determine the boiling point of the test item using differential scanning calorimetry (DSC 280 - 350°C). The test item and the reference are heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Open crucibles are used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released is measured and recorded. The test item had a boiling range of 336.2 °C under atmospheric conditions.

Categories Display