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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:
19 April to 20 June 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
GLP compliance:
no
Type of method:
differential scanning calorimetry
Key result
Boiling pt.:
>= 265 - <= 271 °C
Atm. press.:
1 013 hPa

Results

 

Between approx. 200 – 310 °C an 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

PN10902

19.26

265.52

200 - 310 (endo)

19.26

1013.1

PN10903

19.21

270.89

200 - 300 (endo)

19.21

1013.4

 

The test item showed an endothermic signal in the temperature range of approx. 200 - 310 °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. Isobutyl alcohol). A correction value φ = 6.5 was used for the temperature of 260 – 270 °C.

The lowest measured onset temperature is corrected to the standard pressure to be 265.52 °C and the highest onset temperature to be 270.88 °C. As the corrected onset temperatures in both tests deviate by more than 0.5 K from their mean value of 268.20 °C, the test item has a boiling range of 265 – 271 °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 265 – 271 °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 265.0 - 271.0 °C (at 1013 hPa) was determined for the test substance according to EU Method A.2

Description of key information

Boiling range: 265.0 - 271.0 °C at 1013 hPa (EU Method A.2, differential scanning calorimetry)

Key value for chemical safety assessment

Additional information

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