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Boiling point

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Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
26-Aug-2014 to 27-Aug-2014
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/boiling range)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
GLP compliance:
no
Type of method:
differential scanning calorimetry
Boiling pt.:
246.7 °C
Atm. press.:
1 013 hPa

Results

In the thermograms of the two DSC runs (nos. PN7356 and PN7368) an endothermic (melting) effect was observed in the temperature range of -60 °C to - 45 °C. Between 100 to 265 °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)

PN7356

10.43

-56.19

245.90

-60 to -45 (endo)

100 to 265 (endo)

10.43

993.8

PN7368

12.85

-56.10

246.19

-60 to -45 (endo)

130 to 260 (endo)

11.80

1004.2

 

The test item showed a second distinct endothermic signal in the temperature range of 100 to 265 °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). According to appendix 7.2 a correction value φ = 5.1 was used for the temperature range from 240 °C to 250 °C.

The lowest measured onset temperature is corrected to the standard pressure to be 246.59 °C and the highest onset temperature to be 246.75 °C. As the corrected onset temperatures in both tests deviate by less than 0.5 K from their mean value of 246.67 °C, the test item has a boiling range from 246.7 °C.

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

Final Results

The test item [trade name] has a boiling point of 246.7 °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 246.7 °C (at 1013 hPa) was determined for the test substance according to E.U. Method A.2.
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
06-Mar-2015
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/boiling range)
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.:
243.2 °C
Atm. press.:
1 013 hPa

Results

In the thermograms of the two DSC runs (nos. PN8424 and PN8425) an endothermic (melting) effect was observed in the temperature range of -60 °C to -50 °C. Between 100 to 260 °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)

PN8424

11.42

-55.86

243.75

-60 to -50 (endo)

110 to 260 (endo)

11.42

1024.2

PN8425

10.43

-55.95

243.69

-60 to -50 (endo)

130 to 260 (endo)

10.43

1024.2

 

The test item showed a second distinct endothermic signal in the temperature range of 100 to 260 °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). According to appendix 8.2 a correction value φ = 5.05 was used for the temperature range from 240 °C to 250 °C.

The lowest measured onset temperature is corrected to the standard pressure to be 243.21 °C and the highest onset temperature to be 243.27 °C. As the corrected onset temperatures in both tests deviate by less than 0.5 K from their mean value of 243.24 °C, the test item has a boiling point of 243.2 °C.

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

Final Results

The test item [trade name] has a boiling point of 243.2 °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 243.2°C (at 1013 hPa) was determined for the test substance according to E.U. Method A.2.

Description of key information

Boiling point

Composition A: 246.7 °C at 1013 hPa (EU Method A.2, differential scanning calorimetry)

Composition B: 243.2 °C at 1013 hPa (EU Method A.2, differential scanning calorimetry)

Key value for chemical safety assessment

Additional information