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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:
17DEC2009 - 05FEB2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Version / remarks:
(1995)
Deviations:
no
GLP compliance:
no
Type of method:
differential scanning calorimetry
Atm. press.:
ca. 1 013 mBar
Decomposition:
yes
Decomp. temp.:
320 °C

In order to ensure proper interpretation of the endothermic effect in the DSC curve (diagram 1 in the attached document), additional TGA measurements were performed. The TGA-curve (diagram 2 in the attached document) shows only a small weight loss of 3,2 % up to the beginning of the exothermal effect at 320 °C. This is the evidence that no boiling occurs up to the beginning of the exothermal effect.

Conclusions:
The substance has no boiling temperature. Boiling of the test substance was not observed below the temperature at which thermal decomposition started, i.e. 320 °C. The investigation has been carried out by differential scanning calorimetry in accordance with EC A.2 and OECD 103 guidelines, and supported by additional TGA analysis.

Description of key information

The substance has no boiling temperature. Boiling of the test substance was not observed below the temperature at which thermal decomposition started (320 °C)

Key value for chemical safety assessment

Additional information

Determined in a study performed in accordance with OECD 103, by differential scanning calorimetry.