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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:
22 April to 30 May 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Qualifier:
according to
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
GLP compliance:
no
Type of method:
differential scanning calorimetry
Key result
Boiling pt.:
>= 214 - <= 219 °C
Atm. press.:
1 013 hPa

Results

 

In the the thermograms of the DSC (runs PN10937 and PN11163) an endothermic effect (boiling) could be detecte between approx. 180 - 240 °C.

 

Results of the DSC-measurements

No.

Sample weight / mg

Onset of Effect / °C

Range of effect / °C

Weight loss / mg

Atmospheric pressure / hPa

PN10937

16.22

214.48

180 - 240 (endo)

16.22

1012

PN11163

22.82

217.56

180 - 240 (endo)

22.79

990.9

 

During the heating phase an endothermic effect was observed in the temperature range of approx. 180 - 240 °C that can be assigned to the boiling of the test item.

For the correction of the boiling temperature to standard pressure the test item was assigned to chemical group 8 (e.g. Alcohol). According to H.N. Hass and R.F. Newton table, a correction value φ = 6.4 was used for the temperature of 210 - 220 °C.

The lowest measured onset temperature is corrected to the standard pressure to be 214.52 °C and the highest onset temperature to be 218.30 °C. As the corrected onset temperatures in both tests deviate by more than 0.5 K from their mean value of 216.41 °C, the test item has a boiling range of 214 - 219 °C.

No further thermal effects were observed up to the maximum test temperature of 500 °C.

 

Final Results

The test item has a boiling range of 214 - 219 °C corrected to normal atmospheric pressure (1013 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.2. and OECD Test Guideline 103 (1995).

Conclusions:
A boiling range of 214 - 219 °C (at 1013 hPa) was determined for the test substance according to EU Method A.2

Description of key information

Boiling range: 214 - 219 °C at 1013 hPa (EU Method A.2, differential scanning calorimetry)

Key value for chemical safety assessment

Additional information

The boiling point has been corrected to normal pressure (1013.25 hPa) using the H.N. Hass and R.F. Newton equation.