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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:
03 Jun 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
GLP guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
GLP compliance:
yes (incl. QA statement)
Remarks:
Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
Type of method:
differential scanning calorimetry
Atm. press.:
999 hPa
Decomposition:
yes
Decomp. temp.:
140 °C

Results
In the temperature range of 140 – 210 °C, an exothermal effect can be seen, with an average decomposition energy of 60 J/g, directly followed by a broad endothermic effect in the temperature range of 210 – 490 °C. No endothermic effect (boiling) could be detected up to the decomposition temperature of 140 °C.

Table 1 – DSC measurement results

Sample weight [mg]

Onset of effect [°C]

Range of effect [°C]

Weight loss [mg]

20.83

--
--

140 – 220 (exo)
220 – 490 (endo)

20.79

11.24

--
--

150 – 210 (exo)
210 – 490 (endo)

11.18

 

Conclusion: The test item has no boiling point up to the decomposition temperature of 140 °C under atmospheric pressure (999 hPa) as determined by DSC. 

Description of key information

Decomposition at 140 °C at 992 hPa (OECD 103, DSC)

Key value for chemical safety assessment

Additional information