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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:
24 Mar 2016 to 25 Mar 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/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.:
204.5 °C
Atm. press.:
1 013 hPa

Results

The thermograms of the DSC runs PN10751 and PN10752 show in the temperature range of 100 – 220 °C an endothermic effect (boiling) could be detected.

During the heating phase the test item showed an endothermic signal in the temperature range of approx. 100 – 220 °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 8 (e.g. Alcohols). According to appendix 8.2 a correction value φ = 6.4 was used for the temperature of 200 – 210 °C. The lowest measured onset temperature is corrected to the standard pressure to be 204.31 °C and the highest onset temperature to be 204.60 °C. As the corrected onset temperatures in both tests deviate by less than 0.5 K from their mean value of 204.46 °C, the test item has a boiling point of 204.5 °C.

Table 1: Results of the DSC measurements

No.

 

Sample weight (mg)

Onset of effect (°C)

Range of effect (°C)

Weight loss (mg)

Atmospheric pressure (hPa)

PN10751

13.89

204.56

100 to 220 (endo)

13.89

1012

PN10751

13.19

204.27

100 to 220 (endo)

13.18

1012

 

Final Results

The test item has a boiling Point of 204.5 °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 204.5 °C (at 1013 hPa) was determined for the test item according to E.U. Method A.2.

Description of key information

Boiling point: 204.5 °C at 1013 hPa (EU Method A.2., differential scanning calorimetry)

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
204.5 °C

Additional information

A boiling point of 204.5 °C (at 1013 hPa) was determined for the test substance according to E.U. Method A.2.