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Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
14 JAN 2002 - 21 MAR 2002
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
Guideline 92/69/EEC, 1992
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Boiling pt.:
222 °C
Atm. press.:
1 013.3 hPa

Two DSC-measurements show an endothermic effect in the range 180 - 230 °C with an onset temperature of approximately 222 °C.

 Ident-No.  Onset / °C  Temperature range / °C  Crucible
 13598  221.97  180 - 230  Aluminium with an aperture
 13599  221.25  180 - 230  Aluminium with an aperture

A graphical presentation of the DSC run No. 13599 in an aluminium pan with a hole is given as attached background material.

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

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

For the estimation of ф the test substance was classified in group 2 (Hydrocarbons, Ethers) according to the table of H.B Hass and R.F. Newton (see figure 3 on page 13).

ф (222 °C, group 2) = 5.0 (from the graph).

Ident-No.  Onset / °C

Atmospheric

pressure / hPa

t / °C

  Boiling point at 1013.3 hPa / °C

 13598  221.97

1002

 + 0.48  222.5
 13599  221.25 1002  + 0.48  221.7

The mean boiling point at atmospheric pressure (1013.3 hPa) is 222 °C.

Conclusions:
The boiling point at atmospheric pressure (1013.3 hPa) is 222 °C.
Executive summary:

The boiling point was tested according to EU Method A.2 and OECD Guideline 103 in a GLP study via differential scanning calorimetry. The boiling point at atmospheric pressure (1013.3 hPa) is 222 °C.

Description of key information

The boiling point was tested according to EU Method A.2 and OECD Guideline 103 in a GLP study via differential scanning calorimetry. The boiling point at atmospheric pressure (1013.3 hPa) is 222 °C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
222 °C

Additional information