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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:
08 August to 11 November 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.:
>= 220 - <= 233 °C
Atm. press.:
1 013 hPa
Decomposition:
no

Results

In the temperature range of 80 - 260 °C an endothermic effect (boiling) was observed. No further thermal effects were observed up to the test end temperature of 500 °C.

 

Results of the DSC-measurements

No.

Sample weight / mg

Onset of Effect / °C

Range of effect / °C

Weight loss / mg

Atmospheric pressure / hPa

PN11553

17.26

232.56

110 – 260

(endo)

17.24

1006.2

PN11574

21.89

230.56

80 – 260

(endo)

21.89

1008.4

PN12287

15.48

219.60

90 – 250

(endo)

15.48

1000.6

 

During the heating phase the test item showed an endothermic signal in the temperature range of approx. 80 - 260 °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 3 (e.g. Esters). A correction value φ = 5.25 was used for the temperature of 220 - 240 °C.

The measured onset temperatures are corrected to the standard pressure to be 220.11 °C, 230.76 °C and to be 232.85 °C. As the corrected onset temperatures in three tests deviate more than 0.5 K from their mean value of 227.91 °C, the test item has a boiling range of 220 - 233 °C.

 

 

Final Results

The test item has a boiling range of 220 - 233 °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 220 - 233 °C (at 1013 hPa) was determined for the test substance according to EU Method A.2

Description of key information

Boiling range: 220 - 233 °C at 1013 hPa (EU Method A.2, differential scanning calorimetry)

Key value for chemical safety assessment

Additional information

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