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Physical & Chemical properties

Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
11 February 2011 – 27 April 2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: This study has been performed according to OECD and EC guidelines and in compliance with GLP principles.
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Version / remarks:
(1995)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
(Official Journal of the European Union no. L142, May 31, 2008)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Decomposition:
yes
Decomp. temp.:
300 °C
Remarks on result:
other: no boiling of the test substance was observed below 300°C; substance has no boiling temperature

Preliminary test

From 100°C upwards the weight of the sample decreased significantly. At 504°C the sample weight had decreased by 25%. After the experiment, a black residue remained in the sample container (original colour: blue). The change of the colour indicated reaction and/or decomposition of the test substance.

Main study

An endothermic effect was observed between 50°Cand 250°C. This effect might be due to evaporation of minor compounds but does not derive from melting of the major compound in E-C104. Therefore, this effect was not reported as melting of the test substance. An exothermic effect was observed between 300°C and 400°C. The effect was due to reaction and/or decomposition of the test substance. After the experiment, a black residue remained in the sample container. The change of the colour indicated reaction and/or decomposition of the test substance.

Conclusions:
Reaction and/or decomposition of the test substance was observed starting at 300°C (573K). Boiling of the test substance was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test substance has no boiling temperature.

Description of key information

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
300 °C

Additional information

Decomp. Temp.
Value for CSR