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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:
2007-04-03 to 2007-05-03
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Version / remarks:
1995
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Boiling pt.:
>= 399 - <= 415 °C
Atm. press.:
1 013.3 hPa
Decomposition:
no

Thermal stability


The DSC mearurement in a a closed glass crucible showed two endothermic effects (melting) in the temperature ranges 50-60 °C and 80-100 °C no exothermic effect until 400 °C was observed.


 


Boiling point / boiling range


The DSC measurements with a heating rate of 10 K/min showed an endothermal effect in the temperature range of 360-470 °C with an onset temperature of approx. 407 °C.


 


Boiling point (DSC measurements) 






























Ident No. 



Onset / °C 



Temperature range / °C 



Crucible 



25754 



408.51



360-450



Aluminium with a hole 



25756 



398.52



360-470



Aluminium with a hole 



25762



414.52



360-460



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






































ldent.-No.



Onset / °C



Atmospheric pressure / hPa



Φ(group 2)



Δt / °C



Boiling point at 1013.3 hPa / °C



25754 



408.51



1007



5.377



0.3385



408.85



25756 



398.52



1007



5.357



0.3348



398.85



25762



414.52



1005



5.389



0.4509



414.97



The test item had a boiling range at atmospheric pressure (1013.3 hPa) of 399 °C to 415 °C.

Conclusions:
The boiling range of the test item at atmospheric pressure (1013.3 hPa) was determined to be 399 °C to 415 °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 (DSC 25 -500 °C). The test item and the reference were heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Open crucibles were used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released was measured and recorded. No decomposition was observed. The test item had a boiling range at atmospheric pressure (1013.3 hPa) of 399 °C to 415 °C.

Description of key information

The boiling range of the test item at atmospheric pressure (1013.3 hPa) was determined to be 399 °C to 415 °C.

Key value for chemical safety assessment

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 25 -500 °C). The test item and the reference were heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Open crucibles were used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released was measured and recorded. No decomposition was observed. The test item had a boiling range at atmospheric pressure (1013.3 hPa) of 399 °C to 415 °C.