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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:
2002
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Version / remarks:
- EEC Directive 92/69, A.2
Deviations:
not specified
GLP compliance:
yes
Type of method:
differential scanning calorimetry
Key result
Decomposition:
yes
Decomp. temp.:
ca. 270 °C
Remarks on result:
other: decomposed before boiling

Using thermal analysis, no endothermic peaks were detected in the temperature range between 25 °C and 400 °C from which boiling could be deduced. During the preliminary test, an endothermic heat effect, the melting of TK 11005 (CGI 113) was observed at 72.8 °C (see RCC Study 836144). Starting at about 270 °C an exothermic reaction was observed. The exothermic reaction was caused by the decomposition of the test item. After the experiment the test item was black, carbonized and melted.

A second DSC run was performed to confirm the result found during the preliminary test.

Conclusions:
The decomposition of the test substance  was observed at ca 270°C before boiling occurred.
Executive summary:

In this guideline (OECD 103) study conducted to GLP standards, the test material (EC 438-340-0) was determined not have a boiling point as it decomposes at ca 270°C before boiling occurred.

Description of key information

Study conducted to recognised testing guidelines with GLP.


Key value for chemical safety assessment

Additional information

Decomposes at ca. 270°C  before boiling. The measurement was carried out by DSC.