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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:
13-Jul-2015
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/boiling range)
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.:
198 °C
Atm. press.:
1 013 hPa

Results

In the thermograms of the DSC (runs PN9154 and PN9155) an endothermic effect (boiling) could be detected between approx. 150 to 230 °C.

Results of the DSC measurements

No.

 

Sample weight (mg)

Onset of effect (°C)

Range of effect (°C)

Weight loss (mg)

Atmospheric pressure (hPa)

PN9154

13.98

197.53

150-230 (endo)

13.98

1005.2

PN9155

13.11

197.57

150-220 (endo)

13.11

1005.2

 

During the heating phase the test item showed an endothermic signal in the temperature range of approx. 150 – 230 °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 3 (e.g. Esters). A correction value φ = 5.2 was used for the temperature of 200 °C.

The lowest measured onset temperature is corrected to the standard pressure to be 197.84 °C and the highest onset temperature to be 197.88 °C. As the corrected onset temperatures in both tests deviate by less than 0.5 K from their mean value of 197.86 °C, the test item has a boiling point of 198 °C.

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

Final Results

The test item has a boiling point of 198 °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 point of 198 °C (at 1013 hPa) was determined for the test substance according to E.U. Method A.2.

Description of key information

Boiling point: 198 °C at 1013 hPa (EU Method A.2., differential scanning calorimetry)

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
198 °C

Additional information