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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:
04-Sep-2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reference:
Composition 0
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point/Boiling Range)
Qualifier:
according to
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
GLP compliance:
no
Type of method:
differential scanning calorimetry
Test material information:
Composition 1
Key result
Boiling pt.:
211.1 °C
Atm. press.:
1 013 hPa

Results

In the thermograms of the two DSC runs (nos. PN7418 and PN7421) an endothermic (melting) effect was observed in the temperature range of 45 °C to 65 °C. Between 130 – 250 °C a second endothermic effect (boiling) could be detected.

Results of the DSC measurements

No.

Sample weight

(mg)

Onset of effect

(°C)

Range of effect

(°C)

Weight loss

(mg)

Atmospheric pressure

(hPa)

PN7418

11.72

51.59

210.73

45 to 65 (endo)

140 to 250 (endo)

11.57

1006.7

PN7421

14.37

52.01

210.94

45 to 65 (endo)

130 to 225 (endo)

14.37

1006.7

The test item showed a second distinct endothermic signal in the temperature range of 130 – 250 °C that can be associated with the boiling of the test item.

For the correction of the boiling temperature to standard pressure the test item was assigned to chemical group 2 (eg. Hydrocarbons). A correction value φ = 5.0 was used for the temperature range from 200 °C to 220 °C.

The lowest measured onset temperature is corrected to the standard pressure to be 211.00 °C and the highest onset temperature to be 211.21 °C. As the corrected onset temperatures in both tests deviate by less than 0.5 K from their mean value of 211.11 °C, the test item has a boiling point of 211.1 °C. No further thermal effects were observed up to the test temperature of 500 °C.

Final Results

The test item has a boiling point of 211.1 °C at atmospheric pressure (1013 hPa) as determined by differential scanning calorimetry according to Directive EC440/2008 Method A.2., OECD Test Guideline 103 (1995), EPA OCSPP 830.7220 (1998).

 

Conclusions:
A boiling point of 211.1 °C (at 1013 hPa) was determined for the test substance according to E.U. Method A.2.

Description of key information

Boiling point: 211.1 °C at 1013 hPa (EU Method A.2, differential scanning calorimetry)

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
211.1 °C

Additional information